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# Source code for nodriver.cdp.page

    # DO NOT EDIT THIS FILE!
    #
    # This file is generated from the CDP specification. If you need to make
    # changes, edit the generator and regenerate all of the modules.
    #
    # CDP domain: Page

    from __future__ import annotations
    import enum
    import typing
    from dataclasses import dataclass
    from .util import event_class, T_JSON_DICT

    from . import debugger
    from . import dom
    from . import emulation
    from . import io
    from . import network
    from . import runtime
    from deprecated.sphinx import deprecated # type: ignore

    class FrameId(str):
        '''
        Unique frame identifier.
        '''
        def to_json(self) -> str:
            return self

        @classmethod
        def from_json(cls, json: str) -> FrameId:
            return cls(json)

        def __repr__(self):
            return 'FrameId({})'.format(super().__repr__())

    class AdFrameType(enum.Enum):
        '''
        Indicates whether a frame has been identified as an ad.
        '''
        NONE = "none"
        CHILD = "child"
        ROOT = "root"

        def to_json(self) -> str:
            return self.value

        @classmethod
        def from_json(cls, json: str) -> AdFrameType:
            return cls(json)

    class AdFrameExplanation(enum.Enum):
        PARENT_IS_AD = "ParentIsAd"
        CREATED_BY_AD_SCRIPT = "CreatedByAdScript"
        MATCHED_BLOCKING_RULE = "MatchedBlockingRule"

        def to_json(self) -> str:
            return self.value

        @classmethod
        def from_json(cls, json: str) -> AdFrameExplanation:
            return cls(json)

    @dataclass
    class AdFrameStatus:
        '''
        Indicates whether a frame has been identified as an ad and why.
        '''
        ad_frame_type: AdFrameType

        explanations: typing.Optional[typing.List[AdFrameExplanation]] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['adFrameType'] = self.ad_frame_type.to_json()
            if self.explanations is not None:
                json['explanations'] = [i.to_json() for i in self.explanations]
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> AdFrameStatus:
            return cls(
                ad_frame_type=AdFrameType.from_json(json['adFrameType']),
                explanations=[AdFrameExplanation.from_json(i) for i in json['explanations']] if json.get('explanations', None) is not None else None,
            )

    @dataclass
    class AdScriptId:
        '''
        Identifies the script which caused a script or frame to be labelled as an
        ad.
        '''
        #: Script Id of the script which caused a script or frame to be labelled as
        #: an ad.
        script_id: runtime.ScriptId

        #: Id of scriptId's debugger.
        debugger_id: runtime.UniqueDebuggerId

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['scriptId'] = self.script_id.to_json()
            json['debuggerId'] = self.debugger_id.to_json()
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> AdScriptId:
            return cls(
                script_id=runtime.ScriptId.from_json(json['scriptId']),
                debugger_id=runtime.UniqueDebuggerId.from_json(json['debuggerId']),
            )

    @dataclass
    class AdScriptAncestry:
        '''
        Encapsulates the script ancestry and the root script filterlist rule that
        caused the frame to be labelled as an ad. Only created when ``ancestryChain``
        is not empty.
        '''
        #: A chain of ``AdScriptId``'s representing the ancestry of an ad script that
        #: led to the creation of a frame. The chain is ordered from the script
        #: itself (lower level) up to its root ancestor that was flagged by
        #: filterlist.
        ancestry_chain: typing.List[AdScriptId]

        #: The filterlist rule that caused the root (last) script in
        #: ``ancestryChain`` to be ad-tagged. Only populated if the rule is
        #: available.
        root_script_filterlist_rule: typing.Optional[str] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['ancestryChain'] = [i.to_json() for i in self.ancestry_chain]
            if self.root_script_filterlist_rule is not None:
                json['rootScriptFilterlistRule'] = self.root_script_filterlist_rule
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> AdScriptAncestry:
            return cls(
                ancestry_chain=[AdScriptId.from_json(i) for i in json['ancestryChain']],
                root_script_filterlist_rule=str(json['rootScriptFilterlistRule']) if json.get('rootScriptFilterlistRule', None) is not None else None,
            )

    class SecureContextType(enum.Enum):
        '''
        Indicates whether the frame is a secure context and why it is the case.
        '''
        SECURE = "Secure"
        SECURE_LOCALHOST = "SecureLocalhost"
        INSECURE_SCHEME = "InsecureScheme"
        INSECURE_ANCESTOR = "InsecureAncestor"

        def to_json(self) -> str:
            return self.value

        @classmethod
        def from_json(cls, json: str) -> SecureContextType:
            return cls(json)

    class CrossOriginIsolatedContextType(enum.Enum):
        '''
        Indicates whether the frame is cross-origin isolated and why it is the case.
        '''
        ISOLATED = "Isolated"
        NOT_ISOLATED = "NotIsolated"
        NOT_ISOLATED_FEATURE_DISABLED = "NotIsolatedFeatureDisabled"

        def to_json(self) -> str:
            return self.value

        @classmethod
        def from_json(cls, json: str) -> CrossOriginIsolatedContextType:
            return cls(json)

    class GatedAPIFeatures(enum.Enum):
        SHARED_ARRAY_BUFFERS = "SharedArrayBuffers"
        SHARED_ARRAY_BUFFERS_TRANSFER_ALLOWED = "SharedArrayBuffersTransferAllowed"
        PERFORMANCE_MEASURE_MEMORY = "PerformanceMeasureMemory"
        PERFORMANCE_PROFILE = "PerformanceProfile"

        def to_json(self) -> str:
            return self.value

        @classmethod
        def from_json(cls, json: str) -> GatedAPIFeatures:
            return cls(json)

    class PermissionsPolicyFeature(enum.Enum):
        '''
        All Permissions Policy features. This enum should match the one defined
        in services/network/public/cpp/permissions_policy/permissions_policy_features.json5.
        LINT.IfChange(PermissionsPolicyFeature)
        '''
        ACCELEROMETER = "accelerometer"
        ALL_SCREENS_CAPTURE = "all-screens-capture"
        AMBIENT_LIGHT_SENSOR = "ambient-light-sensor"
        ARIA_NOTIFY = "aria-notify"
        ATTRIBUTION_REPORTING = "attribution-reporting"
        AUTOPLAY = "autoplay"
        BLUETOOTH = "bluetooth"
        BROWSING_TOPICS = "browsing-topics"
        CAMERA = "camera"
        CAPTURED_SURFACE_CONTROL = "captured-surface-control"
        CH_DPR = "ch-dpr"
        CH_DEVICE_MEMORY = "ch-device-memory"
        CH_DOWNLINK = "ch-downlink"
        CH_ECT = "ch-ect"
        CH_PREFERS_COLOR_SCHEME = "ch-prefers-color-scheme"
        CH_PREFERS_REDUCED_MOTION = "ch-prefers-reduced-motion"
        CH_PREFERS_REDUCED_TRANSPARENCY = "ch-prefers-reduced-transparency"
        CH_RTT = "ch-rtt"
        CH_SAVE_DATA = "ch-save-data"
        CH_UA = "ch-ua"
        CH_UA_ARCH = "ch-ua-arch"
        CH_UA_BITNESS = "ch-ua-bitness"
        CH_UA_HIGH_ENTROPY_VALUES = "ch-ua-high-entropy-values"
        CH_UA_PLATFORM = "ch-ua-platform"
        CH_UA_MODEL = "ch-ua-model"
        CH_UA_MOBILE = "ch-ua-mobile"
        CH_UA_FORM_FACTORS = "ch-ua-form-factors"
        CH_UA_FULL_VERSION = "ch-ua-full-version"
        CH_UA_FULL_VERSION_LIST = "ch-ua-full-version-list"
        CH_UA_PLATFORM_VERSION = "ch-ua-platform-version"
        CH_UA_WOW64 = "ch-ua-wow64"
        CH_VIEWPORT_HEIGHT = "ch-viewport-height"
        CH_VIEWPORT_WIDTH = "ch-viewport-width"
        CH_WIDTH = "ch-width"
        CLIPBOARD_READ = "clipboard-read"
        CLIPBOARD_WRITE = "clipboard-write"
        COMPUTE_PRESSURE = "compute-pressure"
        CONTROLLED_FRAME = "controlled-frame"
        CROSS_ORIGIN_ISOLATED = "cross-origin-isolated"
        DEFERRED_FETCH = "deferred-fetch"
        DEFERRED_FETCH_MINIMAL = "deferred-fetch-minimal"
        DEVICE_ATTRIBUTES = "device-attributes"
        DIGITAL_CREDENTIALS_CREATE = "digital-credentials-create"
        DIGITAL_CREDENTIALS_GET = "digital-credentials-get"
        DIRECT_SOCKETS = "direct-sockets"
        DIRECT_SOCKETS_MULTICAST = "direct-sockets-multicast"
        DIRECT_SOCKETS_PRIVATE = "direct-sockets-private"
        DISPLAY_CAPTURE = "display-capture"
        DOCUMENT_DOMAIN = "document-domain"
        ENCRYPTED_MEDIA = "encrypted-media"
        EXECUTION_WHILE_OUT_OF_VIEWPORT = "execution-while-out-of-viewport"
        EXECUTION_WHILE_NOT_RENDERED = "execution-while-not-rendered"
        FENCED_UNPARTITIONED_STORAGE_READ = "fenced-unpartitioned-storage-read"
        FOCUS_WITHOUT_USER_ACTIVATION = "focus-without-user-activation"
        FULLSCREEN = "fullscreen"
        FROBULATE = "frobulate"
        GAMEPAD = "gamepad"
        GEOLOCATION = "geolocation"
        GYROSCOPE = "gyroscope"
        HID = "hid"
        IDENTITY_CREDENTIALS_GET = "identity-credentials-get"
        IDLE_DETECTION = "idle-detection"
        INTEREST_COHORT = "interest-cohort"
        JOIN_AD_INTEREST_GROUP = "join-ad-interest-group"
        KEYBOARD_MAP = "keyboard-map"
        LANGUAGE_DETECTOR = "language-detector"
        LANGUAGE_MODEL = "language-model"
        LOCAL_FONTS = "local-fonts"
        LOCAL_NETWORK_ACCESS = "local-network-access"
        MAGNETOMETER = "magnetometer"
        MEDIA_PLAYBACK_WHILE_NOT_VISIBLE = "media-playback-while-not-visible"
        MICROPHONE = "microphone"
        MIDI = "midi"
        ON_DEVICE_SPEECH_RECOGNITION = "on-device-speech-recognition"
        OTP_CREDENTIALS = "otp-credentials"
        PAYMENT = "payment"
        PICTURE_IN_PICTURE = "picture-in-picture"
        POPINS = "popins"
        PRIVATE_AGGREGATION = "private-aggregation"
        PRIVATE_STATE_TOKEN_ISSUANCE = "private-state-token-issuance"
        PRIVATE_STATE_TOKEN_REDEMPTION = "private-state-token-redemption"
        PUBLICKEY_CREDENTIALS_CREATE = "publickey-credentials-create"
        PUBLICKEY_CREDENTIALS_GET = "publickey-credentials-get"
        RECORD_AD_AUCTION_EVENTS = "record-ad-auction-events"
        REWRITER = "rewriter"
        RUN_AD_AUCTION = "run-ad-auction"
        SCREEN_WAKE_LOCK = "screen-wake-lock"
        SERIAL = "serial"
        SHARED_AUTOFILL = "shared-autofill"
        SHARED_STORAGE = "shared-storage"
        SHARED_STORAGE_SELECT_URL = "shared-storage-select-url"
        SMART_CARD = "smart-card"
        SPEAKER_SELECTION = "speaker-selection"
        STORAGE_ACCESS = "storage-access"
        SUB_APPS = "sub-apps"
        SUMMARIZER = "summarizer"
        SYNC_XHR = "sync-xhr"
        TRANSLATOR = "translator"
        UNLOAD = "unload"
        USB = "usb"
        USB_UNRESTRICTED = "usb-unrestricted"
        VERTICAL_SCROLL = "vertical-scroll"
        WEB_APP_INSTALLATION = "web-app-installation"
        WEB_PRINTING = "web-printing"
        WEB_SHARE = "web-share"
        WINDOW_MANAGEMENT = "window-management"
        WRITER = "writer"
        XR_SPATIAL_TRACKING = "xr-spatial-tracking"

        def to_json(self) -> str:
            return self.value

        @classmethod
        def from_json(cls, json: str) -> PermissionsPolicyFeature:
            return cls(json)

    class PermissionsPolicyBlockReason(enum.Enum):
        '''
        Reason for a permissions policy feature to be disabled.
        '''
        HEADER = "Header"
        IFRAME_ATTRIBUTE = "IframeAttribute"
        IN_FENCED_FRAME_TREE = "InFencedFrameTree"
        IN_ISOLATED_APP = "InIsolatedApp"

        def to_json(self) -> str:
            return self.value

        @classmethod
        def from_json(cls, json: str) -> PermissionsPolicyBlockReason:
            return cls(json)

    @dataclass
    class PermissionsPolicyBlockLocator:
        frame_id: FrameId

        block_reason: PermissionsPolicyBlockReason

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['frameId'] = self.frame_id.to_json()
            json['blockReason'] = self.block_reason.to_json()
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> PermissionsPolicyBlockLocator:
            return cls(
                frame_id=FrameId.from_json(json['frameId']),
                block_reason=PermissionsPolicyBlockReason.from_json(json['blockReason']),
            )

    @dataclass
    class PermissionsPolicyFeatureState:
        feature: PermissionsPolicyFeature

        allowed: bool

        locator: typing.Optional[PermissionsPolicyBlockLocator] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['feature'] = self.feature.to_json()
            json['allowed'] = self.allowed
            if self.locator is not None:
                json['locator'] = self.locator.to_json()
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> PermissionsPolicyFeatureState:
            return cls(
                feature=PermissionsPolicyFeature.from_json(json['feature']),
                allowed=bool(json['allowed']),
                locator=PermissionsPolicyBlockLocator.from_json(json['locator']) if json.get('locator', None) is not None else None,
            )

    class OriginTrialTokenStatus(enum.Enum):
        '''
        Origin Trial(https://www.chromium.org/blink/origin-trials) support.
        Status for an Origin Trial token.
        '''
        SUCCESS = "Success"
        NOT_SUPPORTED = "NotSupported"
        INSECURE = "Insecure"
        EXPIRED = "Expired"
        WRONG_ORIGIN = "WrongOrigin"
        INVALID_SIGNATURE = "InvalidSignature"
        MALFORMED = "Malformed"
        WRONG_VERSION = "WrongVersion"
        FEATURE_DISABLED = "FeatureDisabled"
        TOKEN_DISABLED = "TokenDisabled"
        FEATURE_DISABLED_FOR_USER = "FeatureDisabledForUser"
        UNKNOWN_TRIAL = "UnknownTrial"

        def to_json(self) -> str:
            return self.value

        @classmethod
        def from_json(cls, json: str) -> OriginTrialTokenStatus:
            return cls(json)

    class OriginTrialStatus(enum.Enum):
        '''
        Status for an Origin Trial.
        '''
        ENABLED = "Enabled"
        VALID_TOKEN_NOT_PROVIDED = "ValidTokenNotProvided"
        OS_NOT_SUPPORTED = "OSNotSupported"
        TRIAL_NOT_ALLOWED = "TrialNotAllowed"

        def to_json(self) -> str:
            return self.value

        @classmethod
        def from_json(cls, json: str) -> OriginTrialStatus:
            return cls(json)

    class OriginTrialUsageRestriction(enum.Enum):
        NONE = "None"
        SUBSET = "Subset"

        def to_json(self) -> str:
            return self.value

        @classmethod
        def from_json(cls, json: str) -> OriginTrialUsageRestriction:
            return cls(json)

    @dataclass
    class OriginTrialToken:
        origin: str

        match_sub_domains: bool

        trial_name: str

        expiry_time: network.TimeSinceEpoch

        is_third_party: bool

        usage_restriction: OriginTrialUsageRestriction

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['origin'] = self.origin
            json['matchSubDomains'] = self.match_sub_domains
            json['trialName'] = self.trial_name
            json['expiryTime'] = self.expiry_time.to_json()
            json['isThirdParty'] = self.is_third_party
            json['usageRestriction'] = self.usage_restriction.to_json()
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> OriginTrialToken:
            return cls(
                origin=str(json['origin']),
                match_sub_domains=bool(json['matchSubDomains']),
                trial_name=str(json['trialName']),
                expiry_time=network.TimeSinceEpoch.from_json(json['expiryTime']),
                is_third_party=bool(json['isThirdParty']),
                usage_restriction=OriginTrialUsageRestriction.from_json(json['usageRestriction']),
            )

    @dataclass
    class OriginTrialTokenWithStatus:
        raw_token_text: str

        status: OriginTrialTokenStatus

        #: ``parsedToken`` is present only when the token is extractable and
        #: parsable.
        parsed_token: typing.Optional[OriginTrialToken] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['rawTokenText'] = self.raw_token_text
            json['status'] = self.status.to_json()
            if self.parsed_token is not None:
                json['parsedToken'] = self.parsed_token.to_json()
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> OriginTrialTokenWithStatus:
            return cls(
                raw_token_text=str(json['rawTokenText']),
                status=OriginTrialTokenStatus.from_json(json['status']),
                parsed_token=OriginTrialToken.from_json(json['parsedToken']) if json.get('parsedToken', None) is not None else None,
            )

    @dataclass
    class OriginTrial:
        trial_name: str

        status: OriginTrialStatus

        tokens_with_status: typing.List[OriginTrialTokenWithStatus]

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['trialName'] = self.trial_name
            json['status'] = self.status.to_json()
            json['tokensWithStatus'] = [i.to_json() for i in self.tokens_with_status]
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> OriginTrial:
            return cls(
                trial_name=str(json['trialName']),
                status=OriginTrialStatus.from_json(json['status']),
                tokens_with_status=[OriginTrialTokenWithStatus.from_json(i) for i in json['tokensWithStatus']],
            )

    @dataclass
    class SecurityOriginDetails:
        '''
        Additional information about the frame document's security origin.
        '''
        #: Indicates whether the frame document's security origin is one
        #: of the local hostnames (e.g. "localhost") or IP addresses (IPv4
        #: 127.0.0.0/8 or IPv6 ::1).
        is_localhost: bool

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['isLocalhost'] = self.is_localhost
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> SecurityOriginDetails:
            return cls(
                is_localhost=bool(json['isLocalhost']),
            )

    @dataclass
    class Frame:
        '''
        Information about the Frame on the page.
        '''
        #: Frame unique identifier.
        id_: FrameId

        #: Identifier of the loader associated with this frame.
        loader_id: network.LoaderId

        #: Frame document's URL without fragment.
        url: str

        #: Frame document's registered domain, taking the public suffixes list into account.
        #: Extracted from the Frame's url.
        #: Example URLs: http://www.google.com/file.html -> "google.com"
        #:               http://a.b.co.uk/file.html      -> "b.co.uk"
        domain_and_registry: str

        #: Frame document's security origin.
        security_origin: str

        #: Frame document's mimeType as determined by the browser.
        mime_type: str

        #: Indicates whether the main document is a secure context and explains why that is the case.
        secure_context_type: SecureContextType

        #: Indicates whether this is a cross origin isolated context.
        cross_origin_isolated_context_type: CrossOriginIsolatedContextType

        #: Indicated which gated APIs / features are available.
        gated_api_features: typing.List[GatedAPIFeatures]

        #: Parent frame identifier.
        parent_id: typing.Optional[FrameId] = None

        #: Frame's name as specified in the tag.
        name: typing.Optional[str] = None

        #: Frame document's URL fragment including the '#'.
        url_fragment: typing.Optional[str] = None

        #: Additional details about the frame document's security origin.
        security_origin_details: typing.Optional[SecurityOriginDetails] = None

        #: If the frame failed to load, this contains the URL that could not be loaded. Note that unlike url above, this URL may contain a fragment.
        unreachable_url: typing.Optional[str] = None

        #: Indicates whether this frame was tagged as an ad and why.
        ad_frame_status: typing.Optional[AdFrameStatus] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['id'] = self.id_.to_json()
            json['loaderId'] = self.loader_id.to_json()
            json['url'] = self.url
            json['domainAndRegistry'] = self.domain_and_registry
            json['securityOrigin'] = self.security_origin
            json['mimeType'] = self.mime_type
            json['secureContextType'] = self.secure_context_type.to_json()
            json['crossOriginIsolatedContextType'] = self.cross_origin_isolated_context_type.to_json()
            json['gatedAPIFeatures'] = [i.to_json() for i in self.gated_api_features]
            if self.parent_id is not None:
                json['parentId'] = self.parent_id.to_json()
            if self.name is not None:
                json['name'] = self.name
            if self.url_fragment is not None:
                json['urlFragment'] = self.url_fragment
            if self.security_origin_details is not None:
                json['securityOriginDetails'] = self.security_origin_details.to_json()
            if self.unreachable_url is not None:
                json['unreachableUrl'] = self.unreachable_url
            if self.ad_frame_status is not None:
                json['adFrameStatus'] = self.ad_frame_status.to_json()
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> Frame:
            return cls(
                id_=FrameId.from_json(json['id']),
                loader_id=network.LoaderId.from_json(json['loaderId']),
                url=str(json['url']),
                domain_and_registry=str(json['domainAndRegistry']),
                security_origin=str(json['securityOrigin']),
                mime_type=str(json['mimeType']),
                secure_context_type=SecureContextType.from_json(json['secureContextType']),
                cross_origin_isolated_context_type=CrossOriginIsolatedContextType.from_json(json['crossOriginIsolatedContextType']),
                gated_api_features=[GatedAPIFeatures.from_json(i) for i in json['gatedAPIFeatures']],
                parent_id=FrameId.from_json(json['parentId']) if json.get('parentId', None) is not None else None,
                name=str(json['name']) if json.get('name', None) is not None else None,
                url_fragment=str(json['urlFragment']) if json.get('urlFragment', None) is not None else None,
                security_origin_details=SecurityOriginDetails.from_json(json['securityOriginDetails']) if json.get('securityOriginDetails', None) is not None else None,
                unreachable_url=str(json['unreachableUrl']) if json.get('unreachableUrl', None) is not None else None,
                ad_frame_status=AdFrameStatus.from_json(json['adFrameStatus']) if json.get('adFrameStatus', None) is not None else None,
            )

    @dataclass
    class FrameResource:
        '''
        Information about the Resource on the page.
        '''
        #: Resource URL.
        url: str

        #: Type of this resource.
        type_: network.ResourceType

        #: Resource mimeType as determined by the browser.
        mime_type: str

        #: last-modified timestamp as reported by server.
        last_modified: typing.Optional[network.TimeSinceEpoch] = None

        #: Resource content size.
        content_size: typing.Optional[float] = None

        #: True if the resource failed to load.
        failed: typing.Optional[bool] = None

        #: True if the resource was canceled during loading.
        canceled: typing.Optional[bool] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['url'] = self.url
            json['type'] = self.type_.to_json()
            json['mimeType'] = self.mime_type
            if self.last_modified is not None:
                json['lastModified'] = self.last_modified.to_json()
            if self.content_size is not None:
                json['contentSize'] = self.content_size
            if self.failed is not None:
                json['failed'] = self.failed
            if self.canceled is not None:
                json['canceled'] = self.canceled
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> FrameResource:
            return cls(
                url=str(json['url']),
                type_=network.ResourceType.from_json(json['type']),
                mime_type=str(json['mimeType']),
                last_modified=network.TimeSinceEpoch.from_json(json['lastModified']) if json.get('lastModified', None) is not None else None,
                content_size=float(json['contentSize']) if json.get('contentSize', None) is not None else None,
                failed=bool(json['failed']) if json.get('failed', None) is not None else None,
                canceled=bool(json['canceled']) if json.get('canceled', None) is not None else None,
            )

    @dataclass
    class FrameResourceTree:
        '''
        Information about the Frame hierarchy along with their cached resources.
        '''
        #: Frame information for this tree item.
        frame: Frame

        #: Information about frame resources.
        resources: typing.List[FrameResource]

        #: Child frames.
        child_frames: typing.Optional[typing.List[FrameResourceTree]] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['frame'] = self.frame.to_json()
            json['resources'] = [i.to_json() for i in self.resources]
            if self.child_frames is not None:
                json['childFrames'] = [i.to_json() for i in self.child_frames]
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> FrameResourceTree:
            return cls(
                frame=Frame.from_json(json['frame']),
                resources=[FrameResource.from_json(i) for i in json['resources']],
                child_frames=[FrameResourceTree.from_json(i) for i in json['childFrames']] if json.get('childFrames', None) is not None else None,
            )

    @dataclass
    class FrameTree:
        '''
        Information about the Frame hierarchy.
        '''
        #: Frame information for this tree item.
        frame: Frame

        #: Child frames.
        child_frames: typing.Optional[typing.List[FrameTree]] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['frame'] = self.frame.to_json()
            if self.child_frames is not None:
                json['childFrames'] = [i.to_json() for i in self.child_frames]
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> FrameTree:
            return cls(
                frame=Frame.from_json(json['frame']),
                child_frames=[FrameTree.from_json(i) for i in json['childFrames']] if json.get('childFrames', None) is not None else None,
            )

    class ScriptIdentifier(str):
        '''
        Unique script identifier.
        '''
        def to_json(self) -> str:
            return self

        @classmethod
        def from_json(cls, json: str) -> ScriptIdentifier:
            return cls(json)

        def __repr__(self):
            return 'ScriptIdentifier({})'.format(super().__repr__())

    class TransitionType(enum.Enum):
        '''
        Transition type.
        '''
        LINK = "link"
        TYPED = "typed"
        ADDRESS_BAR = "address_bar"
        AUTO_BOOKMARK = "auto_bookmark"
        AUTO_SUBFRAME = "auto_subframe"
        MANUAL_SUBFRAME = "manual_subframe"
        GENERATED = "generated"
        AUTO_TOPLEVEL = "auto_toplevel"
        FORM_SUBMIT = "form_submit"
        RELOAD = "reload"
        KEYWORD = "keyword"
        KEYWORD_GENERATED = "keyword_generated"
        OTHER = "other"

        def to_json(self) -> str:
            return self.value

        @classmethod
        def from_json(cls, json: str) -> TransitionType:
            return cls(json)

    @dataclass
    class NavigationEntry:
        '''
        Navigation history entry.
        '''
        #: Unique id of the navigation history entry.
        id_: int

        #: URL of the navigation history entry.
        url: str

        #: URL that the user typed in the url bar.
        user_typed_url: str

        #: Title of the navigation history entry.
        title: str

        #: Transition type.
        transition_type: TransitionType

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['id'] = self.id_
            json['url'] = self.url
            json['userTypedURL'] = self.user_typed_url
            json['title'] = self.title
            json['transitionType'] = self.transition_type.to_json()
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> NavigationEntry:
            return cls(
                id_=int(json['id']),
                url=str(json['url']),
                user_typed_url=str(json['userTypedURL']),
                title=str(json['title']),
                transition_type=TransitionType.from_json(json['transitionType']),
            )

    @dataclass
    class ScreencastFrameMetadata:
        '''
        Screencast frame metadata.
        '''
        #: Top offset in DIP.
        offset_top: float

        #: Page scale factor.
        page_scale_factor: float

        #: Device screen width in DIP.
        device_width: float

        #: Device screen height in DIP.
        device_height: float

        #: Position of horizontal scroll in CSS pixels.
        scroll_offset_x: float

        #: Position of vertical scroll in CSS pixels.
        scroll_offset_y: float

        #: Frame swap timestamp.
        timestamp: typing.Optional[network.TimeSinceEpoch] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['offsetTop'] = self.offset_top
            json['pageScaleFactor'] = self.page_scale_factor
            json['deviceWidth'] = self.device_width
            json['deviceHeight'] = self.device_height
            json['scrollOffsetX'] = self.scroll_offset_x
            json['scrollOffsetY'] = self.scroll_offset_y
            if self.timestamp is not None:
                json['timestamp'] = self.timestamp.to_json()
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> ScreencastFrameMetadata:
            return cls(
                offset_top=float(json['offsetTop']),
                page_scale_factor=float(json['pageScaleFactor']),
                device_width=float(json['deviceWidth']),
                device_height=float(json['deviceHeight']),
                scroll_offset_x=float(json['scrollOffsetX']),
                scroll_offset_y=float(json['scrollOffsetY']),
                timestamp=network.TimeSinceEpoch.from_json(json['timestamp']) if json.get('timestamp', None) is not None else None,
            )

    class DialogType(enum.Enum):
        '''
        Javascript dialog type.
        '''
        ALERT = "alert"
        CONFIRM = "confirm"
        PROMPT = "prompt"
        BEFOREUNLOAD = "beforeunload"

        def to_json(self) -> str:
            return self.value

        @classmethod
        def from_json(cls, json: str) -> DialogType:
            return cls(json)

    @dataclass
    class AppManifestError:
        '''
        Error while paring app manifest.
        '''
        #: Error message.
        message: str

        #: If critical, this is a non-recoverable parse error.
        critical: int

        #: Error line.
        line: int

        #: Error column.
        column: int

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['message'] = self.message
            json['critical'] = self.critical
            json['line'] = self.line
            json['column'] = self.column
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> AppManifestError:
            return cls(
                message=str(json['message']),
                critical=int(json['critical']),
                line=int(json['line']),
                column=int(json['column']),
            )

    @dataclass
    class AppManifestParsedProperties:
        '''
        Parsed app manifest properties.
        '''
        #: Computed scope value
        scope: str

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['scope'] = self.scope
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> AppManifestParsedProperties:
            return cls(
                scope=str(json['scope']),
            )

    @dataclass
    class LayoutViewport:
        '''
        Layout viewport position and dimensions.
        '''
        #: Horizontal offset relative to the document (CSS pixels).
        page_x: int

        #: Vertical offset relative to the document (CSS pixels).
        page_y: int

        #: Width (CSS pixels), excludes scrollbar if present.
        client_width: int

        #: Height (CSS pixels), excludes scrollbar if present.
        client_height: int

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['pageX'] = self.page_x
            json['pageY'] = self.page_y
            json['clientWidth'] = self.client_width
            json['clientHeight'] = self.client_height
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> LayoutViewport:
            return cls(
                page_x=int(json['pageX']),
                page_y=int(json['pageY']),
                client_width=int(json['clientWidth']),
                client_height=int(json['clientHeight']),
            )

    @dataclass
    class VisualViewport:
        '''
        Visual viewport position, dimensions, and scale.
        '''
        #: Horizontal offset relative to the layout viewport (CSS pixels).
        offset_x: float

        #: Vertical offset relative to the layout viewport (CSS pixels).
        offset_y: float

        #: Horizontal offset relative to the document (CSS pixels).
        page_x: float

        #: Vertical offset relative to the document (CSS pixels).
        page_y: float

        #: Width (CSS pixels), excludes scrollbar if present.
        client_width: float

        #: Height (CSS pixels), excludes scrollbar if present.
        client_height: float

        #: Scale relative to the ideal viewport (size at width=device-width).
        scale: float

        #: Page zoom factor (CSS to device independent pixels ratio).
        zoom: typing.Optional[float] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['offsetX'] = self.offset_x
            json['offsetY'] = self.offset_y
            json['pageX'] = self.page_x
            json['pageY'] = self.page_y
            json['clientWidth'] = self.client_width
            json['clientHeight'] = self.client_height
            json['scale'] = self.scale
            if self.zoom is not None:
                json['zoom'] = self.zoom
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> VisualViewport:
            return cls(
                offset_x=float(json['offsetX']),
                offset_y=float(json['offsetY']),
                page_x=float(json['pageX']),
                page_y=float(json['pageY']),
                client_width=float(json['clientWidth']),
                client_height=float(json['clientHeight']),
                scale=float(json['scale']),
                zoom=float(json['zoom']) if json.get('zoom', None) is not None else None,
            )

    @dataclass
    class Viewport:
        '''
        Viewport for capturing screenshot.
        '''
        #: X offset in device independent pixels (dip).
        x: float

        #: Y offset in device independent pixels (dip).
        y: float

        #: Rectangle width in device independent pixels (dip).
        width: float

        #: Rectangle height in device independent pixels (dip).
        height: float

        #: Page scale factor.
        scale: float

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['x'] = self.x
            json['y'] = self.y
            json['width'] = self.width
            json['height'] = self.height
            json['scale'] = self.scale
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> Viewport:
            return cls(
                x=float(json['x']),
                y=float(json['y']),
                width=float(json['width']),
                height=float(json['height']),
                scale=float(json['scale']),
            )

    @dataclass
    class FontFamilies:
        '''
        Generic font families collection.
        '''
        #: The standard font-family.
        standard: typing.Optional[str] = None

        #: The fixed font-family.
        fixed: typing.Optional[str] = None

        #: The serif font-family.
        serif: typing.Optional[str] = None

        #: The sansSerif font-family.
        sans_serif: typing.Optional[str] = None

        #: The cursive font-family.
        cursive: typing.Optional[str] = None

        #: The fantasy font-family.
        fantasy: typing.Optional[str] = None

        #: The math font-family.
        math: typing.Optional[str] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            if self.standard is not None:
                json['standard'] = self.standard
            if self.fixed is not None:
                json['fixed'] = self.fixed
            if self.serif is not None:
                json['serif'] = self.serif
            if self.sans_serif is not None:
                json['sansSerif'] = self.sans_serif
            if self.cursive is not None:
                json['cursive'] = self.cursive
            if self.fantasy is not None:
                json['fantasy'] = self.fantasy
            if self.math is not None:
                json['math'] = self.math
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> FontFamilies:
            return cls(
                standard=str(json['standard']) if json.get('standard', None) is not None else None,
                fixed=str(json['fixed']) if json.get('fixed', None) is not None else None,
                serif=str(json['serif']) if json.get('serif', None) is not None else None,
                sans_serif=str(json['sansSerif']) if json.get('sansSerif', None) is not None else None,
                cursive=str(json['cursive']) if json.get('cursive', None) is not None else None,
                fantasy=str(json['fantasy']) if json.get('fantasy', None) is not None else None,
                math=str(json['math']) if json.get('math', None) is not None else None,
            )

    @dataclass
    class ScriptFontFamilies:
        '''
        Font families collection for a script.
        '''
        #: Name of the script which these font families are defined for.
        script: str

        #: Generic font families collection for the script.
        font_families: FontFamilies

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['script'] = self.script
            json['fontFamilies'] = self.font_families.to_json()
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> ScriptFontFamilies:
            return cls(
                script=str(json['script']),
                font_families=FontFamilies.from_json(json['fontFamilies']),
            )

    @dataclass
    class FontSizes:
        '''
        Default font sizes.
        '''
        #: Default standard font size.
        standard: typing.Optional[int] = None

        #: Default fixed font size.
        fixed: typing.Optional[int] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            if self.standard is not None:
                json['standard'] = self.standard
            if self.fixed is not None:
                json['fixed'] = self.fixed
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> FontSizes:
            return cls(
                standard=int(json['standard']) if json.get('standard', None) is not None else None,
                fixed=int(json['fixed']) if json.get('fixed', None) is not None else None,
            )

    class ClientNavigationReason(enum.Enum):
        ANCHOR_CLICK = "anchorClick"
        FORM_SUBMISSION_GET = "formSubmissionGet"
        FORM_SUBMISSION_POST = "formSubmissionPost"
        HTTP_HEADER_REFRESH = "httpHeaderRefresh"
        INITIAL_FRAME_NAVIGATION = "initialFrameNavigation"
        META_TAG_REFRESH = "metaTagRefresh"
        OTHER = "other"
        PAGE_BLOCK_INTERSTITIAL = "pageBlockInterstitial"
        RELOAD = "reload"
        SCRIPT_INITIATED = "scriptInitiated"

        def to_json(self) -> str:
            return self.value

        @classmethod
        def from_json(cls, json: str) -> ClientNavigationReason:
            return cls(json)

    class ClientNavigationDisposition(enum.Enum):
        CURRENT_TAB = "currentTab"
        NEW_TAB = "newTab"
        NEW_WINDOW = "newWindow"
        DOWNLOAD = "download"

        def to_json(self) -> str:
            return self.value

        @classmethod
        def from_json(cls, json: str) -> ClientNavigationDisposition:
            return cls(json)

    @dataclass
    class InstallabilityErrorArgument:
        #: Argument name (e.g. name:'minimum-icon-size-in-pixels').
        name: str

        #: Argument value (e.g. value:'64').
        value: str

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['name'] = self.name
            json['value'] = self.value
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> InstallabilityErrorArgument:
            return cls(
                name=str(json['name']),
                value=str(json['value']),
            )

    @dataclass
    class InstallabilityError:
        '''
        The installability error
        '''
        #: The error id (e.g. 'manifest-missing-suitable-icon').
        error_id: str

        #: The list of error arguments (e.g. {name:'minimum-icon-size-in-pixels', value:'64'}).
        error_arguments: typing.List[InstallabilityErrorArgument]

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['errorId'] = self.error_id
            json['errorArguments'] = [i.to_json() for i in self.error_arguments]
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> InstallabilityError:
            return cls(
                error_id=str(json['errorId']),
                error_arguments=[InstallabilityErrorArgument.from_json(i) for i in json['errorArguments']],
            )

    class ReferrerPolicy(enum.Enum):
        '''
        The referring-policy used for the navigation.
        '''
        NO_REFERRER = "noReferrer"
        NO_REFERRER_WHEN_DOWNGRADE = "noReferrerWhenDowngrade"
        ORIGIN = "origin"
        ORIGIN_WHEN_CROSS_ORIGIN = "originWhenCrossOrigin"
        SAME_ORIGIN = "sameOrigin"
        STRICT_ORIGIN = "strictOrigin"
        STRICT_ORIGIN_WHEN_CROSS_ORIGIN = "strictOriginWhenCrossOrigin"
        UNSAFE_URL = "unsafeUrl"

        def to_json(self) -> str:
            return self.value

        @classmethod
        def from_json(cls, json: str) -> ReferrerPolicy:
            return cls(json)

    @dataclass
    class CompilationCacheParams:
        '''
        Per-script compilation cache parameters for ``Page.produceCompilationCache``
        '''
        #: The URL of the script to produce a compilation cache entry for.
        url: str

        #: A hint to the backend whether eager compilation is recommended.
        #: (the actual compilation mode used is upon backend discretion).
        eager: typing.Optional[bool] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['url'] = self.url
            if self.eager is not None:
                json['eager'] = self.eager
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> CompilationCacheParams:
            return cls(
                url=str(json['url']),
                eager=bool(json['eager']) if json.get('eager', None) is not None else None,
            )

    @dataclass
    class FileFilter:
        name: typing.Optional[str] = None

        accepts: typing.Optional[typing.List[str]] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            if self.name is not None:
                json['name'] = self.name
            if self.accepts is not None:
                json['accepts'] = [i for i in self.accepts]
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> FileFilter:
            return cls(
                name=str(json['name']) if json.get('name', None) is not None else None,
                accepts=[str(i) for i in json['accepts']] if json.get('accepts', None) is not None else None,
            )

    @dataclass
    class FileHandler:
        action: str

        name: str

        #: Won't repeat the enums, using string for easy comparison. Same as the
        #: other enums below.
        launch_type: str

        icons: typing.Optional[typing.List[ImageResource]] = None

        #: Mimic a map, name is the key, accepts is the value.
        accepts: typing.Optional[typing.List[FileFilter]] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['action'] = self.action
            json['name'] = self.name
            json['launchType'] = self.launch_type
            if self.icons is not None:
                json['icons'] = [i.to_json() for i in self.icons]
            if self.accepts is not None:
                json['accepts'] = [i.to_json() for i in self.accepts]
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> FileHandler:
            return cls(
                action=str(json['action']),
                name=str(json['name']),
                launch_type=str(json['launchType']),
                icons=[ImageResource.from_json(i) for i in json['icons']] if json.get('icons', None) is not None else None,
                accepts=[FileFilter.from_json(i) for i in json['accepts']] if json.get('accepts', None) is not None else None,
            )

    @dataclass
    class ImageResource:
        '''
        The image definition used in both icon and screenshot.
        '''
        #: The src field in the definition, but changing to url in favor of
        #: consistency.
        url: str

        sizes: typing.Optional[str] = None

        type_: typing.Optional[str] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['url'] = self.url
            if self.sizes is not None:
                json['sizes'] = self.sizes
            if self.type_ is not None:
                json['type'] = self.type_
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> ImageResource:
            return cls(
                url=str(json['url']),
                sizes=str(json['sizes']) if json.get('sizes', None) is not None else None,
                type_=str(json['type']) if json.get('type', None) is not None else None,
            )

    @dataclass
    class LaunchHandler:
        client_mode: str

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['clientMode'] = self.client_mode
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> LaunchHandler:
            return cls(
                client_mode=str(json['clientMode']),
            )

    @dataclass
    class ProtocolHandler:
        protocol: str

        url: str

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['protocol'] = self.protocol
            json['url'] = self.url
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> ProtocolHandler:
            return cls(
                protocol=str(json['protocol']),
                url=str(json['url']),
            )

    @dataclass
    class RelatedApplication:
        url: str

        id_: typing.Optional[str] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['url'] = self.url
            if self.id_ is not None:
                json['id'] = self.id_
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> RelatedApplication:
            return cls(
                url=str(json['url']),
                id_=str(json['id']) if json.get('id', None) is not None else None,
            )

    @dataclass
    class ScopeExtension:
        #: Instead of using tuple, this field always returns the serialized string
        #: for easy understanding and comparison.
        origin: str

        has_origin_wildcard: bool

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['origin'] = self.origin
            json['hasOriginWildcard'] = self.has_origin_wildcard
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> ScopeExtension:
            return cls(
                origin=str(json['origin']),
                has_origin_wildcard=bool(json['hasOriginWildcard']),
            )

    @dataclass
    class Screenshot:
        image: ImageResource

        form_factor: str

        label: typing.Optional[str] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['image'] = self.image.to_json()
            json['formFactor'] = self.form_factor
            if self.label is not None:
                json['label'] = self.label
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> Screenshot:
            return cls(
                image=ImageResource.from_json(json['image']),
                form_factor=str(json['formFactor']),
                label=str(json['label']) if json.get('label', None) is not None else None,
            )

    @dataclass
    class ShareTarget:
        action: str

        method: str

        enctype: str

        #: Embed the ShareTargetParams
        title: typing.Optional[str] = None

        text: typing.Optional[str] = None

        url: typing.Optional[str] = None

        files: typing.Optional[typing.List[FileFilter]] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['action'] = self.action
            json['method'] = self.method
            json['enctype'] = self.enctype
            if self.title is not None:
                json['title'] = self.title
            if self.text is not None:
                json['text'] = self.text
            if self.url is not None:
                json['url'] = self.url
            if self.files is not None:
                json['files'] = [i.to_json() for i in self.files]
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> ShareTarget:
            return cls(
                action=str(json['action']),
                method=str(json['method']),
                enctype=str(json['enctype']),
                title=str(json['title']) if json.get('title', None) is not None else None,
                text=str(json['text']) if json.get('text', None) is not None else None,
                url=str(json['url']) if json.get('url', None) is not None else None,
                files=[FileFilter.from_json(i) for i in json['files']] if json.get('files', None) is not None else None,
            )

    @dataclass
    class Shortcut:
        name: str

        url: str

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['name'] = self.name
            json['url'] = self.url
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> Shortcut:
            return cls(
                name=str(json['name']),
                url=str(json['url']),
            )

    @dataclass
    class WebAppManifest:
        background_color: typing.Optional[str] = None

        #: The extra description provided by the manifest.
        description: typing.Optional[str] = None

        dir_: typing.Optional[str] = None

        display: typing.Optional[str] = None

        #: The overrided display mode controlled by the user.
        display_overrides: typing.Optional[typing.List[str]] = None

        #: The handlers to open files.
        file_handlers: typing.Optional[typing.List[FileHandler]] = None

        icons: typing.Optional[typing.List[ImageResource]] = None

        id_: typing.Optional[str] = None

        lang: typing.Optional[str] = None

        #: TODO(crbug.com/1231886): This field is non-standard and part of a Chrome
        #: experiment. See:
        #: https://github.com/WICG/web-app-launch/blob/main/launch_handler.md
        launch_handler: typing.Optional[LaunchHandler] = None

        name: typing.Optional[str] = None

        orientation: typing.Optional[str] = None

        prefer_related_applications: typing.Optional[bool] = None

        #: The handlers to open protocols.
        protocol_handlers: typing.Optional[typing.List[ProtocolHandler]] = None

        related_applications: typing.Optional[typing.List[RelatedApplication]] = None

        scope: typing.Optional[str] = None

        #: Non-standard, see
        #: https://github.com/WICG/manifest-incubations/blob/gh-pages/scope_extensions-explainer.md
        scope_extensions: typing.Optional[typing.List[ScopeExtension]] = None

        #: The screenshots used by chromium.
        screenshots: typing.Optional[typing.List[Screenshot]] = None

        share_target: typing.Optional[ShareTarget] = None

        short_name: typing.Optional[str] = None

        shortcuts: typing.Optional[typing.List[Shortcut]] = None

        start_url: typing.Optional[str] = None

        theme_color: typing.Optional[str] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            if self.background_color is not None:
                json['backgroundColor'] = self.background_color
            if self.description is not None:
                json['description'] = self.description
            if self.dir_ is not None:
                json['dir'] = self.dir_
            if self.display is not None:
                json['display'] = self.display
            if self.display_overrides is not None:
                json['displayOverrides'] = [i for i in self.display_overrides]
            if self.file_handlers is not None:
                json['fileHandlers'] = [i.to_json() for i in self.file_handlers]
            if self.icons is not None:
                json['icons'] = [i.to_json() for i in self.icons]
            if self.id_ is not None:
                json['id'] = self.id_
            if self.lang is not None:
                json['lang'] = self.lang
            if self.launch_handler is not None:
                json['launchHandler'] = self.launch_handler.to_json()
            if self.name is not None:
                json['name'] = self.name
            if self.orientation is not None:
                json['orientation'] = self.orientation
            if self.prefer_related_applications is not None:
                json['preferRelatedApplications'] = self.prefer_related_applications
            if self.protocol_handlers is not None:
                json['protocolHandlers'] = [i.to_json() for i in self.protocol_handlers]
            if self.related_applications is not None:
                json['relatedApplications'] = [i.to_json() for i in self.related_applications]
            if self.scope is not None:
                json['scope'] = self.scope
            if self.scope_extensions is not None:
                json['scopeExtensions'] = [i.to_json() for i in self.scope_extensions]
            if self.screenshots is not None:
                json['screenshots'] = [i.to_json() for i in self.screenshots]
            if self.share_target is not None:
                json['shareTarget'] = self.share_target.to_json()
            if self.short_name is not None:
                json['shortName'] = self.short_name
            if self.shortcuts is not None:
                json['shortcuts'] = [i.to_json() for i in self.shortcuts]
            if self.start_url is not None:
                json['startUrl'] = self.start_url
            if self.theme_color is not None:
                json['themeColor'] = self.theme_color
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> WebAppManifest:
            return cls(
                background_color=str(json['backgroundColor']) if json.get('backgroundColor', None) is not None else None,
                description=str(json['description']) if json.get('description', None) is not None else None,
                dir_=str(json['dir']) if json.get('dir', None) is not None else None,
                display=str(json['display']) if json.get('display', None) is not None else None,
                display_overrides=[str(i) for i in json['displayOverrides']] if json.get('displayOverrides', None) is not None else None,
                file_handlers=[FileHandler.from_json(i) for i in json['fileHandlers']] if json.get('fileHandlers', None) is not None else None,
                icons=[ImageResource.from_json(i) for i in json['icons']] if json.get('icons', None) is not None else None,
                id_=str(json['id']) if json.get('id', None) is not None else None,
                lang=str(json['lang']) if json.get('lang', None) is not None else None,
                launch_handler=LaunchHandler.from_json(json['launchHandler']) if json.get('launchHandler', None) is not None else None,
                name=str(json['name']) if json.get('name', None) is not None else None,
                orientation=str(json['orientation']) if json.get('orientation', None) is not None else None,
                prefer_related_applications=bool(json['preferRelatedApplications']) if json.get('preferRelatedApplications', None) is not None else None,
                protocol_handlers=[ProtocolHandler.from_json(i) for i in json['protocolHandlers']] if json.get('protocolHandlers', None) is not None else None,
                related_applications=[RelatedApplication.from_json(i) for i in json['relatedApplications']] if json.get('relatedApplications', None) is not None else None,
                scope=str(json['scope']) if json.get('scope', None) is not None else None,
                scope_extensions=[ScopeExtension.from_json(i) for i in json['scopeExtensions']] if json.get('scopeExtensions', None) is not None else None,
                screenshots=[Screenshot.from_json(i) for i in json['screenshots']] if json.get('screenshots', None) is not None else None,
                share_target=ShareTarget.from_json(json['shareTarget']) if json.get('shareTarget', None) is not None else None,
                short_name=str(json['shortName']) if json.get('shortName', None) is not None else None,
                shortcuts=[Shortcut.from_json(i) for i in json['shortcuts']] if json.get('shortcuts', None) is not None else None,
                start_url=str(json['startUrl']) if json.get('startUrl', None) is not None else None,
                theme_color=str(json['themeColor']) if json.get('themeColor', None) is not None else None,
            )

    class NavigationType(enum.Enum):
        '''
        The type of a frameNavigated event.
        '''
        NAVIGATION = "Navigation"
        BACK_FORWARD_CACHE_RESTORE = "BackForwardCacheRestore"

        def to_json(self) -> str:
            return self.value

        @classmethod
        def from_json(cls, json: str) -> NavigationType:
            return cls(json)

    class BackForwardCacheNotRestoredReason(enum.Enum):
        '''
        List of not restored reasons for back-forward cache.
        '''
        NOT_PRIMARY_MAIN_FRAME = "NotPrimaryMainFrame"
        BACK_FORWARD_CACHE_DISABLED = "BackForwardCacheDisabled"
        RELATED_ACTIVE_CONTENTS_EXIST = "RelatedActiveContentsExist"
        HTTP_STATUS_NOT_OK = "HTTPStatusNotOK"
        SCHEME_NOT_HTTP_OR_HTTPS = "SchemeNotHTTPOrHTTPS"
        LOADING = "Loading"
        WAS_GRANTED_MEDIA_ACCESS = "WasGrantedMediaAccess"
        DISABLE_FOR_RENDER_FRAME_HOST_CALLED = "DisableForRenderFrameHostCalled"
        DOMAIN_NOT_ALLOWED = "DomainNotAllowed"
        HTTP_METHOD_NOT_GET = "HTTPMethodNotGET"
        SUBFRAME_IS_NAVIGATING = "SubframeIsNavigating"
        TIMEOUT = "Timeout"
        CACHE_LIMIT = "CacheLimit"
        JAVA_SCRIPT_EXECUTION = "JavaScriptExecution"
        RENDERER_PROCESS_KILLED = "RendererProcessKilled"
        RENDERER_PROCESS_CRASHED = "RendererProcessCrashed"
        SCHEDULER_TRACKED_FEATURE_USED = "SchedulerTrackedFeatureUsed"
        CONFLICTING_BROWSING_INSTANCE = "ConflictingBrowsingInstance"
        CACHE_FLUSHED = "CacheFlushed"
        SERVICE_WORKER_VERSION_ACTIVATION = "ServiceWorkerVersionActivation"
        SESSION_RESTORED = "SessionRestored"
        SERVICE_WORKER_POST_MESSAGE = "ServiceWorkerPostMessage"
        ENTERED_BACK_FORWARD_CACHE_BEFORE_SERVICE_WORKER_HOST_ADDED = "EnteredBackForwardCacheBeforeServiceWorkerHostAdded"
        RENDER_FRAME_HOST_REUSED_SAME_SITE = "RenderFrameHostReused_SameSite"
        RENDER_FRAME_HOST_REUSED_CROSS_SITE = "RenderFrameHostReused_CrossSite"
        SERVICE_WORKER_CLAIM = "ServiceWorkerClaim"
        IGNORE_EVENT_AND_EVICT = "IgnoreEventAndEvict"
        HAVE_INNER_CONTENTS = "HaveInnerContents"
        TIMEOUT_PUTTING_IN_CACHE = "TimeoutPuttingInCache"
        BACK_FORWARD_CACHE_DISABLED_BY_LOW_MEMORY = "BackForwardCacheDisabledByLowMemory"
        BACK_FORWARD_CACHE_DISABLED_BY_COMMAND_LINE = "BackForwardCacheDisabledByCommandLine"
        NETWORK_REQUEST_DATAPIPE_DRAINED_AS_BYTES_CONSUMER = "NetworkRequestDatapipeDrainedAsBytesConsumer"
        NETWORK_REQUEST_REDIRECTED = "NetworkRequestRedirected"
        NETWORK_REQUEST_TIMEOUT = "NetworkRequestTimeout"
        NETWORK_EXCEEDS_BUFFER_LIMIT = "NetworkExceedsBufferLimit"
        NAVIGATION_CANCELLED_WHILE_RESTORING = "NavigationCancelledWhileRestoring"
        NOT_MOST_RECENT_NAVIGATION_ENTRY = "NotMostRecentNavigationEntry"
        BACK_FORWARD_CACHE_DISABLED_FOR_PRERENDER = "BackForwardCacheDisabledForPrerender"
        USER_AGENT_OVERRIDE_DIFFERS = "UserAgentOverrideDiffers"
        FOREGROUND_CACHE_LIMIT = "ForegroundCacheLimit"
        BROWSING_INSTANCE_NOT_SWAPPED = "BrowsingInstanceNotSwapped"
        BACK_FORWARD_CACHE_DISABLED_FOR_DELEGATE = "BackForwardCacheDisabledForDelegate"
        UNLOAD_HANDLER_EXISTS_IN_MAIN_FRAME = "UnloadHandlerExistsInMainFrame"
        UNLOAD_HANDLER_EXISTS_IN_SUB_FRAME = "UnloadHandlerExistsInSubFrame"
        SERVICE_WORKER_UNREGISTRATION = "ServiceWorkerUnregistration"
        CACHE_CONTROL_NO_STORE = "CacheControlNoStore"
        CACHE_CONTROL_NO_STORE_COOKIE_MODIFIED = "CacheControlNoStoreCookieModified"
        CACHE_CONTROL_NO_STORE_HTTP_ONLY_COOKIE_MODIFIED = "CacheControlNoStoreHTTPOnlyCookieModified"
        NO_RESPONSE_HEAD = "NoResponseHead"
        UNKNOWN = "Unknown"
        ACTIVATION_NAVIGATIONS_DISALLOWED_FOR_BUG1234857 = "ActivationNavigationsDisallowedForBug1234857"
        ERROR_DOCUMENT = "ErrorDocument"
        FENCED_FRAMES_EMBEDDER = "FencedFramesEmbedder"
        COOKIE_DISABLED = "CookieDisabled"
        HTTP_AUTH_REQUIRED = "HTTPAuthRequired"
        COOKIE_FLUSHED = "CookieFlushed"
        BROADCAST_CHANNEL_ON_MESSAGE = "BroadcastChannelOnMessage"
        WEB_VIEW_SETTINGS_CHANGED = "WebViewSettingsChanged"
        WEB_VIEW_JAVA_SCRIPT_OBJECT_CHANGED = "WebViewJavaScriptObjectChanged"
        WEB_VIEW_MESSAGE_LISTENER_INJECTED = "WebViewMessageListenerInjected"
        WEB_VIEW_SAFE_BROWSING_ALLOWLIST_CHANGED = "WebViewSafeBrowsingAllowlistChanged"
        WEB_VIEW_DOCUMENT_START_JAVASCRIPT_CHANGED = "WebViewDocumentStartJavascriptChanged"
        WEB_SOCKET = "WebSocket"
        WEB_TRANSPORT = "WebTransport"
        WEB_RTC = "WebRTC"
        MAIN_RESOURCE_HAS_CACHE_CONTROL_NO_STORE = "MainResourceHasCacheControlNoStore"
        MAIN_RESOURCE_HAS_CACHE_CONTROL_NO_CACHE = "MainResourceHasCacheControlNoCache"
        SUBRESOURCE_HAS_CACHE_CONTROL_NO_STORE = "SubresourceHasCacheControlNoStore"
        SUBRESOURCE_HAS_CACHE_CONTROL_NO_CACHE = "SubresourceHasCacheControlNoCache"
        CONTAINS_PLUGINS = "ContainsPlugins"
        DOCUMENT_LOADED = "DocumentLoaded"
        OUTSTANDING_NETWORK_REQUEST_OTHERS = "OutstandingNetworkRequestOthers"
        REQUESTED_MIDI_PERMISSION = "RequestedMIDIPermission"
        REQUESTED_AUDIO_CAPTURE_PERMISSION = "RequestedAudioCapturePermission"
        REQUESTED_VIDEO_CAPTURE_PERMISSION = "RequestedVideoCapturePermission"
        REQUESTED_BACK_FORWARD_CACHE_BLOCKED_SENSORS = "RequestedBackForwardCacheBlockedSensors"
        REQUESTED_BACKGROUND_WORK_PERMISSION = "RequestedBackgroundWorkPermission"
        BROADCAST_CHANNEL = "BroadcastChannel"
        WEB_XR = "WebXR"
        SHARED_WORKER = "SharedWorker"
        SHARED_WORKER_MESSAGE = "SharedWorkerMessage"
        WEB_LOCKS = "WebLocks"
        WEB_HID = "WebHID"
        WEB_SHARE = "WebShare"
        REQUESTED_STORAGE_ACCESS_GRANT = "RequestedStorageAccessGrant"
        WEB_NFC = "WebNfc"
        OUTSTANDING_NETWORK_REQUEST_FETCH = "OutstandingNetworkRequestFetch"
        OUTSTANDING_NETWORK_REQUEST_XHR = "OutstandingNetworkRequestXHR"
        APP_BANNER = "AppBanner"
        PRINTING = "Printing"
        WEB_DATABASE = "WebDatabase"
        PICTURE_IN_PICTURE = "PictureInPicture"
        SPEECH_RECOGNIZER = "SpeechRecognizer"
        IDLE_MANAGER = "IdleManager"
        PAYMENT_MANAGER = "PaymentManager"
        SPEECH_SYNTHESIS = "SpeechSynthesis"
        KEYBOARD_LOCK = "KeyboardLock"
        WEB_OTP_SERVICE = "WebOTPService"
        OUTSTANDING_NETWORK_REQUEST_DIRECT_SOCKET = "OutstandingNetworkRequestDirectSocket"
        INJECTED_JAVASCRIPT = "InjectedJavascript"
        INJECTED_STYLE_SHEET = "InjectedStyleSheet"
        KEEPALIVE_REQUEST = "KeepaliveRequest"
        INDEXED_DB_EVENT = "IndexedDBEvent"
        DUMMY = "Dummy"
        JS_NETWORK_REQUEST_RECEIVED_CACHE_CONTROL_NO_STORE_RESOURCE = "JsNetworkRequestReceivedCacheControlNoStoreResource"
        WEB_RTC_USED_WITH_CCNS = "WebRTCUsedWithCCNS"
        WEB_TRANSPORT_USED_WITH_CCNS = "WebTransportUsedWithCCNS"
        WEB_SOCKET_USED_WITH_CCNS = "WebSocketUsedWithCCNS"
        SMART_CARD = "SmartCard"
        LIVE_MEDIA_STREAM_TRACK = "LiveMediaStreamTrack"
        UNLOAD_HANDLER = "UnloadHandler"
        PARSER_ABORTED = "ParserAborted"
        CONTENT_SECURITY_HANDLER = "ContentSecurityHandler"
        CONTENT_WEB_AUTHENTICATION_API = "ContentWebAuthenticationAPI"
        CONTENT_FILE_CHOOSER = "ContentFileChooser"
        CONTENT_SERIAL = "ContentSerial"
        CONTENT_FILE_SYSTEM_ACCESS = "ContentFileSystemAccess"
        CONTENT_MEDIA_DEVICES_DISPATCHER_HOST = "ContentMediaDevicesDispatcherHost"
        CONTENT_WEB_BLUETOOTH = "ContentWebBluetooth"
        CONTENT_WEB_USB = "ContentWebUSB"
        CONTENT_MEDIA_SESSION_SERVICE = "ContentMediaSessionService"
        CONTENT_SCREEN_READER = "ContentScreenReader"
        CONTENT_DISCARDED = "ContentDiscarded"
        EMBEDDER_POPUP_BLOCKER_TAB_HELPER = "EmbedderPopupBlockerTabHelper"
        EMBEDDER_SAFE_BROWSING_TRIGGERED_POPUP_BLOCKER = "EmbedderSafeBrowsingTriggeredPopupBlocker"
        EMBEDDER_SAFE_BROWSING_THREAT_DETAILS = "EmbedderSafeBrowsingThreatDetails"
        EMBEDDER_APP_BANNER_MANAGER = "EmbedderAppBannerManager"
        EMBEDDER_DOM_DISTILLER_VIEWER_SOURCE = "EmbedderDomDistillerViewerSource"
        EMBEDDER_DOM_DISTILLER_SELF_DELETING_REQUEST_DELEGATE = "EmbedderDomDistillerSelfDeletingRequestDelegate"
        EMBEDDER_OOM_INTERVENTION_TAB_HELPER = "EmbedderOomInterventionTabHelper"
        EMBEDDER_OFFLINE_PAGE = "EmbedderOfflinePage"
        EMBEDDER_CHROME_PASSWORD_MANAGER_CLIENT_BIND_CREDENTIAL_MANAGER = "EmbedderChromePasswordManagerClientBindCredentialManager"
        EMBEDDER_PERMISSION_REQUEST_MANAGER = "EmbedderPermissionRequestManager"
        EMBEDDER_MODAL_DIALOG = "EmbedderModalDialog"
        EMBEDDER_EXTENSIONS = "EmbedderExtensions"
        EMBEDDER_EXTENSION_MESSAGING = "EmbedderExtensionMessaging"
        EMBEDDER_EXTENSION_MESSAGING_FOR_OPEN_PORT = "EmbedderExtensionMessagingForOpenPort"
        EMBEDDER_EXTENSION_SENT_MESSAGE_TO_CACHED_FRAME = "EmbedderExtensionSentMessageToCachedFrame"
        REQUESTED_BY_WEB_VIEW_CLIENT = "RequestedByWebViewClient"
        POST_MESSAGE_BY_WEB_VIEW_CLIENT = "PostMessageByWebViewClient"
        CACHE_CONTROL_NO_STORE_DEVICE_BOUND_SESSION_TERMINATED = "CacheControlNoStoreDeviceBoundSessionTerminated"
        CACHE_LIMIT_PRUNED_ON_MODERATE_MEMORY_PRESSURE = "CacheLimitPrunedOnModerateMemoryPressure"
        CACHE_LIMIT_PRUNED_ON_CRITICAL_MEMORY_PRESSURE = "CacheLimitPrunedOnCriticalMemoryPressure"

        def to_json(self) -> str:
            return self.value

        @classmethod
        def from_json(cls, json: str) -> BackForwardCacheNotRestoredReason:
            return cls(json)

    class BackForwardCacheNotRestoredReasonType(enum.Enum):
        '''
        Types of not restored reasons for back-forward cache.
        '''
        SUPPORT_PENDING = "SupportPending"
        PAGE_SUPPORT_NEEDED = "PageSupportNeeded"
        CIRCUMSTANTIAL = "Circumstantial"

        def to_json(self) -> str:
            return self.value

        @classmethod
        def from_json(cls, json: str) -> BackForwardCacheNotRestoredReasonType:
            return cls(json)

    @dataclass
    class BackForwardCacheBlockingDetails:
        #: Line number in the script (0-based).
        line_number: int

        #: Column number in the script (0-based).
        column_number: int

        #: Url of the file where blockage happened. Optional because of tests.
        url: typing.Optional[str] = None

        #: Function name where blockage happened. Optional because of anonymous functions and tests.
        function: typing.Optional[str] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['lineNumber'] = self.line_number
            json['columnNumber'] = self.column_number
            if self.url is not None:
                json['url'] = self.url
            if self.function is not None:
                json['function'] = self.function
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> BackForwardCacheBlockingDetails:
            return cls(
                line_number=int(json['lineNumber']),
                column_number=int(json['columnNumber']),
                url=str(json['url']) if json.get('url', None) is not None else None,
                function=str(json['function']) if json.get('function', None) is not None else None,
            )

    @dataclass
    class BackForwardCacheNotRestoredExplanation:
        #: Type of the reason
        type_: BackForwardCacheNotRestoredReasonType

        #: Not restored reason
        reason: BackForwardCacheNotRestoredReason

        #: Context associated with the reason. The meaning of this context is
        #: dependent on the reason:
        #: - EmbedderExtensionSentMessageToCachedFrame: the extension ID.
        context: typing.Optional[str] = None

        details: typing.Optional[typing.List[BackForwardCacheBlockingDetails]] = None

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['type'] = self.type_.to_json()
            json['reason'] = self.reason.to_json()
            if self.context is not None:
                json['context'] = self.context
            if self.details is not None:
                json['details'] = [i.to_json() for i in self.details]
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> BackForwardCacheNotRestoredExplanation:
            return cls(
                type_=BackForwardCacheNotRestoredReasonType.from_json(json['type']),
                reason=BackForwardCacheNotRestoredReason.from_json(json['reason']),
                context=str(json['context']) if json.get('context', None) is not None else None,
                details=[BackForwardCacheBlockingDetails.from_json(i) for i in json['details']] if json.get('details', None) is not None else None,
            )

    @dataclass
    class BackForwardCacheNotRestoredExplanationTree:
        #: URL of each frame
        url: str

        #: Not restored reasons of each frame
        explanations: typing.List[BackForwardCacheNotRestoredExplanation]

        #: Array of children frame
        children: typing.List[BackForwardCacheNotRestoredExplanationTree]

        def to_json(self) -> T_JSON_DICT:
            json: T_JSON_DICT = dict()
            json['url'] = self.url
            json['explanations'] = [i.to_json() for i in self.explanations]
            json['children'] = [i.to_json() for i in self.children]
            return json

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> BackForwardCacheNotRestoredExplanationTree:
            return cls(
                url=str(json['url']),
                explanations=[BackForwardCacheNotRestoredExplanation.from_json(i) for i in json['explanations']],
                children=[BackForwardCacheNotRestoredExplanationTree.from_json(i) for i in json['children']],
            )

    @deprecated(version="1.3")
    def add_script_to_evaluate_on_load(
            script_source: str
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,ScriptIdentifier]:
        '''
        Deprecated, please use addScriptToEvaluateOnNewDocument instead.

        .. deprecated:: 1.3

        **EXPERIMENTAL**

        :param script_source:
        :returns: Identifier of the added script.
        '''
        params: T_JSON_DICT = dict()
        params['scriptSource'] = script_source
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.addScriptToEvaluateOnLoad',
            'params': params,
        }
        json = yield cmd_dict
        return ScriptIdentifier.from_json(json['identifier'])

    def add_script_to_evaluate_on_new_document(
            source: str,
            world_name: typing.Optional[str] = None,
            include_command_line_api: typing.Optional[bool] = None,
            run_immediately: typing.Optional[bool] = None
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,ScriptIdentifier]:
        '''
        Evaluates given script in every frame upon creation (before loading frame's scripts).

        :param source:
        :param world_name: **(EXPERIMENTAL)** *(Optional)* If specified, creates an isolated world with the given name and evaluates given script in it. This world name will be used as the ExecutionContextDescription::name when the corresponding event is emitted.
        :param include_command_line_api: **(EXPERIMENTAL)** *(Optional)* Specifies whether command line API should be available to the script, defaults to false.
        :param run_immediately: **(EXPERIMENTAL)** *(Optional)* If true, runs the script immediately on existing execution contexts or worlds. Default: false.
        :returns: Identifier of the added script.
        '''
        params: T_JSON_DICT = dict()
        params['source'] = source
        if world_name is not None:
            params['worldName'] = world_name
        if include_command_line_api is not None:
            params['includeCommandLineAPI'] = include_command_line_api
        if run_immediately is not None:
            params['runImmediately'] = run_immediately
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.addScriptToEvaluateOnNewDocument',
            'params': params,
        }
        json = yield cmd_dict
        return ScriptIdentifier.from_json(json['identifier'])

    def bring_to_front() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Brings page to front (activates tab).
        '''
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.bringToFront',
        }
        json = yield cmd_dict

    def capture_screenshot(
            format_: typing.Optional[str] = None,
            quality: typing.Optional[int] = None,
            clip: typing.Optional[Viewport] = None,
            from_surface: typing.Optional[bool] = None,
            capture_beyond_viewport: typing.Optional[bool] = None,
            optimize_for_speed: typing.Optional[bool] = None
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,str]:
        '''
        Capture page screenshot.

        :param format_: *(Optional)* Image compression format (defaults to png).
        :param quality: *(Optional)* Compression quality from range [0..100] (jpeg only).
        :param clip: *(Optional)* Capture the screenshot of a given region only.
        :param from_surface: **(EXPERIMENTAL)** *(Optional)* Capture the screenshot from the surface, rather than the view. Defaults to true.
        :param capture_beyond_viewport: **(EXPERIMENTAL)** *(Optional)* Capture the screenshot beyond the viewport. Defaults to false.
        :param optimize_for_speed: **(EXPERIMENTAL)** *(Optional)* Optimize image encoding for speed, not for resulting size (defaults to false)
        :returns: Base64-encoded image data. (Encoded as a base64 string when passed over JSON)
        '''
        params: T_JSON_DICT = dict()
        if format_ is not None:
            params['format'] = format_
        if quality is not None:
            params['quality'] = quality
        if clip is not None:
            params['clip'] = clip.to_json()
        if from_surface is not None:
            params['fromSurface'] = from_surface
        if capture_beyond_viewport is not None:
            params['captureBeyondViewport'] = capture_beyond_viewport
        if optimize_for_speed is not None:
            params['optimizeForSpeed'] = optimize_for_speed
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.captureScreenshot',
            'params': params,
        }
        json = yield cmd_dict
        return str(json['data'])

    def capture_snapshot(
            format_: typing.Optional[str] = None
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,str]:
        '''
        Returns a snapshot of the page as a string. For MHTML format, the serialization includes
        iframes, shadow DOM, external resources, and element-inline styles.

        **EXPERIMENTAL**

        :param format_: *(Optional)* Format (defaults to mhtml).
        :returns: Serialized page data.
        '''
        params: T_JSON_DICT = dict()
        if format_ is not None:
            params['format'] = format_
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.captureSnapshot',
            'params': params,
        }
        json = yield cmd_dict
        return str(json['data'])

    @deprecated(version="1.3")
    def clear_device_metrics_override() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Clears the overridden device metrics.

        .. deprecated:: 1.3

        **EXPERIMENTAL**
        '''
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.clearDeviceMetricsOverride',
        }
        json = yield cmd_dict

    @deprecated(version="1.3")
    def clear_device_orientation_override() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Clears the overridden Device Orientation.

        .. deprecated:: 1.3

        **EXPERIMENTAL**
        '''
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.clearDeviceOrientationOverride',
        }
        json = yield cmd_dict

    @deprecated(version="1.3")
    def clear_geolocation_override() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Clears the overridden Geolocation Position and Error.

        .. deprecated:: 1.3
        '''
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.clearGeolocationOverride',
        }
        json = yield cmd_dict

    def create_isolated_world(
            frame_id: FrameId,
            world_name: typing.Optional[str] = None,
            grant_univeral_access: typing.Optional[bool] = None
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,runtime.ExecutionContextId]:
        '''
        Creates an isolated world for the given frame.

        :param frame_id: Id of the frame in which the isolated world should be created.
        :param world_name: *(Optional)* An optional name which is reported in the Execution Context.
        :param grant_univeral_access: *(Optional)* Whether or not universal access should be granted to the isolated world. This is a powerful option, use with caution.
        :returns: Execution context of the isolated world.
        '''
        params: T_JSON_DICT = dict()
        params['frameId'] = frame_id.to_json()
        if world_name is not None:
            params['worldName'] = world_name
        if grant_univeral_access is not None:
            params['grantUniveralAccess'] = grant_univeral_access
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.createIsolatedWorld',
            'params': params,
        }
        json = yield cmd_dict
        return runtime.ExecutionContextId.from_json(json['executionContextId'])

    @deprecated(version="1.3")
    def delete_cookie(
            cookie_name: str,
            url: str
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Deletes browser cookie with given name, domain and path.

        .. deprecated:: 1.3

        **EXPERIMENTAL**

        :param cookie_name: Name of the cookie to remove.
        :param url: URL to match cooke domain and path.
        '''
        params: T_JSON_DICT = dict()
        params['cookieName'] = cookie_name
        params['url'] = url
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.deleteCookie',
            'params': params,
        }
        json = yield cmd_dict

    def disable() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Disables page domain notifications.
        '''
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.disable',
        }
        json = yield cmd_dict

    def enable(
            enable_file_chooser_opened_event: typing.Optional[bool] = None
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Enables page domain notifications.

        :param enable_file_chooser_opened_event: **(EXPERIMENTAL)** *(Optional)* If true, the ```Page.fileChooserOpened```` event will be emitted regardless of the state set by ````Page.setInterceptFileChooserDialog``` command (default: false).
        '''
        params: T_JSON_DICT = dict()
        if enable_file_chooser_opened_event is not None:
            params['enableFileChooserOpenedEvent'] = enable_file_chooser_opened_event
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.enable',
            'params': params,
        }
        json = yield cmd_dict

    def get_app_manifest(
            manifest_id: typing.Optional[str] = None
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,typing.Tuple[str, typing.List[AppManifestError], typing.Optional[str], typing.Optional[AppManifestParsedProperties], WebAppManifest]]:
        '''
        Gets the processed manifest for this current document.
          This API always waits for the manifest to be loaded.
          If manifestId is provided, and it does not match the manifest of the
            current document, this API errors out.
          If there is not a loaded page, this API errors out immediately.

        :param manifest_id: *(Optional)*
        :returns: A tuple with the following items:

            0. **url** - Manifest location.
            1. **errors** -
            2. **data** - *(Optional)* Manifest content.
            3. **parsed** - *(Optional)* Parsed manifest properties. Deprecated, use manifest instead.
            4. **manifest** -
        '''
        params: T_JSON_DICT = dict()
        if manifest_id is not None:
            params['manifestId'] = manifest_id
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.getAppManifest',
            'params': params,
        }
        json = yield cmd_dict
        return (
            str(json['url']),
            [AppManifestError.from_json(i) for i in json['errors']],
            str(json['data']) if json.get('data', None) is not None else None,
            AppManifestParsedProperties.from_json(json['parsed']) if json.get('parsed', None) is not None else None,
            WebAppManifest.from_json(json['manifest'])
        )

    def get_installability_errors() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,typing.List[InstallabilityError]]:
        '''

        **EXPERIMENTAL**

        :returns:
        '''
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.getInstallabilityErrors',
        }
        json = yield cmd_dict
        return [InstallabilityError.from_json(i) for i in json['installabilityErrors']]

    @deprecated(version="1.3")
    def get_manifest_icons() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,typing.Optional[str]]:
        '''
        Deprecated because it's not guaranteed that the returned icon is in fact the one used for PWA installation.

        .. deprecated:: 1.3

        **EXPERIMENTAL**

        :returns:
        '''
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.getManifestIcons',
        }
        json = yield cmd_dict
        return str(json['primaryIcon']) if json.get('primaryIcon', None) is not None else None

    def get_app_id() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,typing.Tuple[typing.Optional[str], typing.Optional[str]]]:
        '''
        Returns the unique (PWA) app id.
        Only returns values if the feature flag 'WebAppEnableManifestId' is enabled

        **EXPERIMENTAL**

        :returns: A tuple with the following items:

            0. **appId** - *(Optional)* App id, either from manifest's id attribute or computed from start_url
            1. **recommendedId** - *(Optional)* Recommendation for manifest's id attribute to match current id computed from start_url
        '''
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.getAppId',
        }
        json = yield cmd_dict
        return (
            str(json['appId']) if json.get('appId', None) is not None else None,
            str(json['recommendedId']) if json.get('recommendedId', None) is not None else None
        )

    def get_ad_script_ancestry(
            frame_id: FrameId
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,typing.Optional[AdScriptAncestry]]:
        '''

        **EXPERIMENTAL**

        :param frame_id:
        :returns: *(Optional)* The ancestry chain of ad script identifiers leading to this frame's creation, along with the root script's filterlist rule. The ancestry chain is ordered from the most immediate script (in the frame creation stack) to more distant ancestors (that created the immediately preceding script). Only sent if frame is labelled as an ad and ids are available.
        '''
        params: T_JSON_DICT = dict()
        params['frameId'] = frame_id.to_json()
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.getAdScriptAncestry',
            'params': params,
        }
        json = yield cmd_dict
        return AdScriptAncestry.from_json(json['adScriptAncestry']) if json.get('adScriptAncestry', None) is not None else None

    def get_frame_tree() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,FrameTree]:
        '''
        Returns present frame tree structure.

        :returns: Present frame tree structure.
        '''
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.getFrameTree',
        }
        json = yield cmd_dict
        return FrameTree.from_json(json['frameTree'])

    def get_layout_metrics() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,typing.Tuple[LayoutViewport, VisualViewport, dom.Rect, LayoutViewport, VisualViewport, dom.Rect]]:
        '''
        Returns metrics relating to the layouting of the page, such as viewport bounds/scale.

        :returns: A tuple with the following items:

            0. **layoutViewport** - Deprecated metrics relating to the layout viewport. Is in device pixels. Use ``cssLayoutViewport`` instead.
            1. **visualViewport** - Deprecated metrics relating to the visual viewport. Is in device pixels. Use ``cssVisualViewport`` instead.
            2. **contentSize** - Deprecated size of scrollable area. Is in DP. Use ``cssContentSize`` instead.
            3. **cssLayoutViewport** - Metrics relating to the layout viewport in CSS pixels.
            4. **cssVisualViewport** - Metrics relating to the visual viewport in CSS pixels.
            5. **cssContentSize** - Size of scrollable area in CSS pixels.
        '''
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.getLayoutMetrics',
        }
        json = yield cmd_dict
        return (
            LayoutViewport.from_json(json['layoutViewport']),
            VisualViewport.from_json(json['visualViewport']),
            dom.Rect.from_json(json['contentSize']),
            LayoutViewport.from_json(json['cssLayoutViewport']),
            VisualViewport.from_json(json['cssVisualViewport']),
            dom.Rect.from_json(json['cssContentSize'])
        )

    def get_resource_content(
            frame_id: FrameId,
            url: str
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,typing.Tuple[str, bool]]:
        '''
        Returns content of the given resource.

        **EXPERIMENTAL**

        :param frame_id: Frame id to get resource for.
        :param url: URL of the resource to get content for.
        :returns: A tuple with the following items:

            0. **content** - Resource content.
            1. **base64Encoded** - True, if content was served as base64.
        '''
        params: T_JSON_DICT = dict()
        params['frameId'] = frame_id.to_json()
        params['url'] = url
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.getResourceContent',
            'params': params,
        }
        json = yield cmd_dict
        return (
            str(json['content']),
            bool(json['base64Encoded'])
        )

    def get_resource_tree() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,FrameResourceTree]:
        '''
        Returns present frame / resource tree structure.

        **EXPERIMENTAL**

        :returns: Present frame / resource tree structure.
        '''
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.getResourceTree',
        }
        json = yield cmd_dict
        return FrameResourceTree.from_json(json['frameTree'])

    def handle_java_script_dialog(
            accept: bool,
            prompt_text: typing.Optional[str] = None
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Accepts or dismisses a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload).

        :param accept: Whether to accept or dismiss the dialog.
        :param prompt_text: *(Optional)* The text to enter into the dialog prompt before accepting. Used only if this is a prompt dialog.
        '''
        params: T_JSON_DICT = dict()
        params['accept'] = accept
        if prompt_text is not None:
            params['promptText'] = prompt_text
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.handleJavaScriptDialog',
            'params': params,
        }
        json = yield cmd_dict

    def navigate(
            url: str,
            referrer: typing.Optional[str] = None,
            transition_type: typing.Optional[TransitionType] = None,
            frame_id: typing.Optional[FrameId] = None,
            referrer_policy: typing.Optional[ReferrerPolicy] = None
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,typing.Tuple[FrameId, typing.Optional[network.LoaderId], typing.Optional[str], typing.Optional[bool]]]:
        '''
        Navigates current page to the given URL.

        :param url: URL to navigate the page to.
        :param referrer: *(Optional)* Referrer URL.
        :param transition_type: *(Optional)* Intended transition type.
        :param frame_id: *(Optional)* Frame id to navigate, if not specified navigates the top frame.
        :param referrer_policy: **(EXPERIMENTAL)** *(Optional)* Referrer-policy used for the navigation.
        :returns: A tuple with the following items:

            0. **frameId** - Frame id that has navigated (or failed to navigate)
            1. **loaderId** - *(Optional)* Loader identifier. This is omitted in case of same-document navigation, as the previously committed loaderId would not change.
            2. **errorText** - *(Optional)* User friendly error message, present if and only if navigation has failed.
            3. **isDownload** - *(Optional)* Whether the navigation resulted in a download.
        '''
        params: T_JSON_DICT = dict()
        params['url'] = url
        if referrer is not None:
            params['referrer'] = referrer
        if transition_type is not None:
            params['transitionType'] = transition_type.to_json()
        if frame_id is not None:
            params['frameId'] = frame_id.to_json()
        if referrer_policy is not None:
            params['referrerPolicy'] = referrer_policy.to_json()
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.navigate',
            'params': params,
        }
        json = yield cmd_dict
        return (
            FrameId.from_json(json['frameId']),
            network.LoaderId.from_json(json['loaderId']) if json.get('loaderId', None) is not None else None,
            str(json['errorText']) if json.get('errorText', None) is not None else None,
            bool(json['isDownload']) if json.get('isDownload', None) is not None else None
        )

    def navigate_to_history_entry(
            entry_id: int
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Navigates current page to the given history entry.

        :param entry_id: Unique id of the entry to navigate to.
        '''
        params: T_JSON_DICT = dict()
        params['entryId'] = entry_id
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.navigateToHistoryEntry',
            'params': params,
        }
        json = yield cmd_dict

    def print_to_pdf(
            landscape: typing.Optional[bool] = None,
            display_header_footer: typing.Optional[bool] = None,
            print_background: typing.Optional[bool] = None,
            scale: typing.Optional[float] = None,
            paper_width: typing.Optional[float] = None,
            paper_height: typing.Optional[float] = None,
            margin_top: typing.Optional[float] = None,
            margin_bottom: typing.Optional[float] = None,
            margin_left: typing.Optional[float] = None,
            margin_right: typing.Optional[float] = None,
            page_ranges: typing.Optional[str] = None,
            header_template: typing.Optional[str] = None,
            footer_template: typing.Optional[str] = None,
            prefer_css_page_size: typing.Optional[bool] = None,
            transfer_mode: typing.Optional[str] = None,
            generate_tagged_pdf: typing.Optional[bool] = None,
            generate_document_outline: typing.Optional[bool] = None
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,typing.Tuple[str, typing.Optional[io.StreamHandle]]]:
        '''
        Print page as PDF.

        :param landscape: *(Optional)* Paper orientation. Defaults to false.
        :param display_header_footer: *(Optional)* Display header and footer. Defaults to false.
        :param print_background: *(Optional)* Print background graphics. Defaults to false.
        :param scale: *(Optional)* Scale of the webpage rendering. Defaults to 1.
        :param paper_width: *(Optional)* Paper width in inches. Defaults to 8.5 inches.
        :param paper_height: *(Optional)* Paper height in inches. Defaults to 11 inches.
        :param margin_top: *(Optional)* Top margin in inches. Defaults to 1cm (~0.4 inches).
        :param margin_bottom: *(Optional)* Bottom margin in inches. Defaults to 1cm (~0.4 inches).
        :param margin_left: *(Optional)* Left margin in inches. Defaults to 1cm (~0.4 inches).
        :param margin_right: *(Optional)* Right margin in inches. Defaults to 1cm (~0.4 inches).
        :param page_ranges: *(Optional)* Paper ranges to print, one based, e.g., '1-5, 8, 11-13'. Pages are printed in the document order, not in the order specified, and no more than once. Defaults to empty string, which implies the entire document is printed. The page numbers are quietly capped to actual page count of the document, and ranges beyond the end of the document are ignored. If this results in no pages to print, an error is reported. It is an error to specify a range with start greater than end.
        :param header_template: *(Optional)* HTML template for the print header. Should be valid HTML markup with following classes used to inject printing values into them: - ```date````: formatted print date - ````title````: document title - ````url````: document location - ````pageNumber````: current page number - ````totalPages````: total pages in the document  For example, ````<span class=title></span>```` would generate span containing the title.
        :param footer_template: *(Optional)* HTML template for the print footer. Should use the same format as the ````headerTemplate````.
        :param prefer_css_page_size: *(Optional)* Whether or not to prefer page size as defined by css. Defaults to false, in which case the content will be scaled to fit the paper size.
        :param transfer_mode: **(EXPERIMENTAL)** *(Optional)* return as stream
        :param generate_tagged_pdf: **(EXPERIMENTAL)** *(Optional)* Whether or not to generate tagged (accessible) PDF. Defaults to embedder choice.
        :param generate_document_outline: **(EXPERIMENTAL)** *(Optional)* Whether or not to embed the document outline into the PDF.
        :returns: A tuple with the following items:

            0. **data** - Base64-encoded pdf data. Empty if `` returnAsStream` is specified. (Encoded as a base64 string when passed over JSON)
            1. **stream** - *(Optional)* A handle of the stream that holds resulting PDF data.
        '''
        params: T_JSON_DICT = dict()
        if landscape is not None:
            params['landscape'] = landscape
        if display_header_footer is not None:
            params['displayHeaderFooter'] = display_header_footer
        if print_background is not None:
            params['printBackground'] = print_background
        if scale is not None:
            params['scale'] = scale
        if paper_width is not None:
            params['paperWidth'] = paper_width
        if paper_height is not None:
            params['paperHeight'] = paper_height
        if margin_top is not None:
            params['marginTop'] = margin_top
        if margin_bottom is not None:
            params['marginBottom'] = margin_bottom
        if margin_left is not None:
            params['marginLeft'] = margin_left
        if margin_right is not None:
            params['marginRight'] = margin_right
        if page_ranges is not None:
            params['pageRanges'] = page_ranges
        if header_template is not None:
            params['headerTemplate'] = header_template
        if footer_template is not None:
            params['footerTemplate'] = footer_template
        if prefer_css_page_size is not None:
            params['preferCSSPageSize'] = prefer_css_page_size
        if transfer_mode is not None:
            params['transferMode'] = transfer_mode
        if generate_tagged_pdf is not None:
            params['generateTaggedPDF'] = generate_tagged_pdf
        if generate_document_outline is not None:
            params['generateDocumentOutline'] = generate_document_outline
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.printToPDF',
            'params': params,
        }
        json = yield cmd_dict
        return (
            str(json['data']),
            io.StreamHandle.from_json(json['stream']) if json.get('stream', None) is not None else None
        )

    def reload(
            ignore_cache: typing.Optional[bool] = None,
            script_to_evaluate_on_load: typing.Optional[str] = None,
            loader_id: typing.Optional[network.LoaderId] = None
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Reloads given page optionally ignoring the cache.

        :param ignore_cache: *(Optional)* If true, browser cache is ignored (as if the user pressed Shift+refresh).
        :param script_to_evaluate_on_load: *(Optional)* If set, the script will be injected into all frames of the inspected page after reload. Argument will be ignored if reloading dataURL origin.
        :param loader_id: **(EXPERIMENTAL)** *(Optional)* If set, an error will be thrown if the target page's main frame's loader id does not match the provided id. This prevents accidentally reloading an unintended target in case there's a racing navigation.
        '''
        params: T_JSON_DICT = dict()
        if ignore_cache is not None:
            params['ignoreCache'] = ignore_cache
        if script_to_evaluate_on_load is not None:
            params['scriptToEvaluateOnLoad'] = script_to_evaluate_on_load
        if loader_id is not None:
            params['loaderId'] = loader_id.to_json()
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.reload',
            'params': params,
        }
        json = yield cmd_dict

    @deprecated(version="1.3")
    def remove_script_to_evaluate_on_load(
            identifier: ScriptIdentifier
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Deprecated, please use removeScriptToEvaluateOnNewDocument instead.

        .. deprecated:: 1.3

        **EXPERIMENTAL**

        :param identifier:
        '''
        params: T_JSON_DICT = dict()
        params['identifier'] = identifier.to_json()
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.removeScriptToEvaluateOnLoad',
            'params': params,
        }
        json = yield cmd_dict

    def remove_script_to_evaluate_on_new_document(
            identifier: ScriptIdentifier
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Removes given script from the list.

        :param identifier:
        '''
        params: T_JSON_DICT = dict()
        params['identifier'] = identifier.to_json()
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.removeScriptToEvaluateOnNewDocument',
            'params': params,
        }
        json = yield cmd_dict

    def screencast_frame_ack(
            session_id: int
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Acknowledges that a screencast frame has been received by the frontend.

        **EXPERIMENTAL**

        :param session_id: Frame number.
        '''
        params: T_JSON_DICT = dict()
        params['sessionId'] = session_id
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.screencastFrameAck',
            'params': params,
        }
        json = yield cmd_dict

    def search_in_resource(
            frame_id: FrameId,
            url: str,
            query: str,
            case_sensitive: typing.Optional[bool] = None,
            is_regex: typing.Optional[bool] = None
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,typing.List[debugger.SearchMatch]]:
        '''
        Searches for given string in resource content.

        **EXPERIMENTAL**

        :param frame_id: Frame id for resource to search in.
        :param url: URL of the resource to search in.
        :param query: String to search for.
        :param case_sensitive: *(Optional)* If true, search is case sensitive.
        :param is_regex: *(Optional)* If true, treats string parameter as regex.
        :returns: List of search matches.
        '''
        params: T_JSON_DICT = dict()
        params['frameId'] = frame_id.to_json()
        params['url'] = url
        params['query'] = query
        if case_sensitive is not None:
            params['caseSensitive'] = case_sensitive
        if is_regex is not None:
            params['isRegex'] = is_regex
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.searchInResource',
            'params': params,
        }
        json = yield cmd_dict
        return [debugger.SearchMatch.from_json(i) for i in json['result']]

    def set_ad_blocking_enabled(
            enabled: bool
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Enable Chrome's experimental ad filter on all sites.

        **EXPERIMENTAL**

        :param enabled: Whether to block ads.
        '''
        params: T_JSON_DICT = dict()
        params['enabled'] = enabled
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.setAdBlockingEnabled',
            'params': params,
        }
        json = yield cmd_dict

    def set_bypass_csp(
            enabled: bool
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Enable page Content Security Policy by-passing.

        :param enabled: Whether to bypass page CSP.
        '''
        params: T_JSON_DICT = dict()
        params['enabled'] = enabled
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.setBypassCSP',
            'params': params,
        }
        json = yield cmd_dict

    def get_permissions_policy_state(
            frame_id: FrameId
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,typing.List[PermissionsPolicyFeatureState]]:
        '''
        Get Permissions Policy state on given frame.

        **EXPERIMENTAL**

        :param frame_id:
        :returns:
        '''
        params: T_JSON_DICT = dict()
        params['frameId'] = frame_id.to_json()
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.getPermissionsPolicyState',
            'params': params,
        }
        json = yield cmd_dict
        return [PermissionsPolicyFeatureState.from_json(i) for i in json['states']]

    def get_origin_trials(
            frame_id: FrameId
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,typing.List[OriginTrial]]:
        '''
        Get Origin Trials on given frame.

        **EXPERIMENTAL**

        :param frame_id:
        :returns:
        '''
        params: T_JSON_DICT = dict()
        params['frameId'] = frame_id.to_json()
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.getOriginTrials',
            'params': params,
        }
        json = yield cmd_dict
        return [OriginTrial.from_json(i) for i in json['originTrials']]

    @deprecated(version="1.3")
    def set_device_metrics_override(
            width: int,
            height: int,
            device_scale_factor: float,
            mobile: bool,
            scale: typing.Optional[float] = None,
            screen_width: typing.Optional[int] = None,
            screen_height: typing.Optional[int] = None,
            position_x: typing.Optional[int] = None,
            position_y: typing.Optional[int] = None,
            dont_set_visible_size: typing.Optional[bool] = None,
            screen_orientation: typing.Optional[emulation.ScreenOrientation] = None,
            viewport: typing.Optional[Viewport] = None
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Overrides the values of device screen dimensions (window.screen.width, window.screen.height,
        window.innerWidth, window.innerHeight, and "device-width"/"device-height"-related CSS media
        query results).

        .. deprecated:: 1.3

        **EXPERIMENTAL**

        :param width: Overriding width value in pixels (minimum 0, maximum 10000000). 0 disables the override.
        :param height: Overriding height value in pixels (minimum 0, maximum 10000000). 0 disables the override.
        :param device_scale_factor: Overriding device scale factor value. 0 disables the override.
        :param mobile: Whether to emulate mobile device. This includes viewport meta tag, overlay scrollbars, text autosizing and more.
        :param scale: *(Optional)* Scale to apply to resulting view image.
        :param screen_width: *(Optional)* Overriding screen width value in pixels (minimum 0, maximum 10000000).
        :param screen_height: *(Optional)* Overriding screen height value in pixels (minimum 0, maximum 10000000).
        :param position_x: *(Optional)* Overriding view X position on screen in pixels (minimum 0, maximum 10000000).
        :param position_y: *(Optional)* Overriding view Y position on screen in pixels (minimum 0, maximum 10000000).
        :param dont_set_visible_size: *(Optional)* Do not set visible view size, rely upon explicit setVisibleSize call.
        :param screen_orientation: *(Optional)* Screen orientation override.
        :param viewport: *(Optional)* The viewport dimensions and scale. If not set, the override is cleared.
        '''
        params: T_JSON_DICT = dict()
        params['width'] = width
        params['height'] = height
        params['deviceScaleFactor'] = device_scale_factor
        params['mobile'] = mobile
        if scale is not None:
            params['scale'] = scale
        if screen_width is not None:
            params['screenWidth'] = screen_width
        if screen_height is not None:
            params['screenHeight'] = screen_height
        if position_x is not None:
            params['positionX'] = position_x
        if position_y is not None:
            params['positionY'] = position_y
        if dont_set_visible_size is not None:
            params['dontSetVisibleSize'] = dont_set_visible_size
        if screen_orientation is not None:
            params['screenOrientation'] = screen_orientation.to_json()
        if viewport is not None:
            params['viewport'] = viewport.to_json()
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.setDeviceMetricsOverride',
            'params': params,
        }
        json = yield cmd_dict

    @deprecated(version="1.3")
    def set_device_orientation_override(
            alpha: float,
            beta: float,
            gamma: float
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Overrides the Device Orientation.

        .. deprecated:: 1.3

        **EXPERIMENTAL**

        :param alpha: Mock alpha
        :param beta: Mock beta
        :param gamma: Mock gamma
        '''
        params: T_JSON_DICT = dict()
        params['alpha'] = alpha
        params['beta'] = beta
        params['gamma'] = gamma
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.setDeviceOrientationOverride',
            'params': params,
        }
        json = yield cmd_dict

    def set_font_families(
            font_families: FontFamilies,
            for_scripts: typing.Optional[typing.List[ScriptFontFamilies]] = None
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Set generic font families.

        **EXPERIMENTAL**

        :param font_families: Specifies font families to set. If a font family is not specified, it won't be changed.
        :param for_scripts: *(Optional)* Specifies font families to set for individual scripts.
        '''
        params: T_JSON_DICT = dict()
        params['fontFamilies'] = font_families.to_json()
        if for_scripts is not None:
            params['forScripts'] = [i.to_json() for i in for_scripts]
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.setFontFamilies',
            'params': params,
        }
        json = yield cmd_dict

    def set_font_sizes(
            font_sizes: FontSizes
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Set default font sizes.

        **EXPERIMENTAL**

        :param font_sizes: Specifies font sizes to set. If a font size is not specified, it won't be changed.
        '''
        params: T_JSON_DICT = dict()
        params['fontSizes'] = font_sizes.to_json()
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.setFontSizes',
            'params': params,
        }
        json = yield cmd_dict

    def set_document_content(
            frame_id: FrameId,
            html: str
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Sets given markup as the document's HTML.

        :param frame_id: Frame id to set HTML for.
        :param html: HTML content to set.
        '''
        params: T_JSON_DICT = dict()
        params['frameId'] = frame_id.to_json()
        params['html'] = html
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.setDocumentContent',
            'params': params,
        }
        json = yield cmd_dict

    @deprecated(version="1.3")
    def set_download_behavior(
            behavior: str,
            download_path: typing.Optional[str] = None
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Set the behavior when downloading a file.

        .. deprecated:: 1.3

        **EXPERIMENTAL**

        :param behavior: Whether to allow all or deny all download requests, or use default Chrome behavior if available (otherwise deny).
        :param download_path: *(Optional)* The default path to save downloaded files to. This is required if behavior is set to 'allow'
        '''
        params: T_JSON_DICT = dict()
        params['behavior'] = behavior
        if download_path is not None:
            params['downloadPath'] = download_path
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.setDownloadBehavior',
            'params': params,
        }
        json = yield cmd_dict

    @deprecated(version="1.3")
    def set_geolocation_override(
            latitude: typing.Optional[float] = None,
            longitude: typing.Optional[float] = None,
            accuracy: typing.Optional[float] = None
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Overrides the Geolocation Position or Error. Omitting any of the parameters emulates position
        unavailable.

        .. deprecated:: 1.3

        :param latitude: *(Optional)* Mock latitude
        :param longitude: *(Optional)* Mock longitude
        :param accuracy: *(Optional)* Mock accuracy
        '''
        params: T_JSON_DICT = dict()
        if latitude is not None:
            params['latitude'] = latitude
        if longitude is not None:
            params['longitude'] = longitude
        if accuracy is not None:
            params['accuracy'] = accuracy
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.setGeolocationOverride',
            'params': params,
        }
        json = yield cmd_dict

    def set_lifecycle_events_enabled(
            enabled: bool
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Controls whether page will emit lifecycle events.

        :param enabled: If true, starts emitting lifecycle events.
        '''
        params: T_JSON_DICT = dict()
        params['enabled'] = enabled
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.setLifecycleEventsEnabled',
            'params': params,
        }
        json = yield cmd_dict

    @deprecated(version="1.3")
    def set_touch_emulation_enabled(
            enabled: bool,
            configuration: typing.Optional[str] = None
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Toggles mouse event-based touch event emulation.

        .. deprecated:: 1.3

        **EXPERIMENTAL**

        :param enabled: Whether the touch event emulation should be enabled.
        :param configuration: *(Optional)* Touch/gesture events configuration. Default: current platform.
        '''
        params: T_JSON_DICT = dict()
        params['enabled'] = enabled
        if configuration is not None:
            params['configuration'] = configuration
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.setTouchEmulationEnabled',
            'params': params,
        }
        json = yield cmd_dict

    def start_screencast(
            format_: typing.Optional[str] = None,
            quality: typing.Optional[int] = None,
            max_width: typing.Optional[int] = None,
            max_height: typing.Optional[int] = None,
            every_nth_frame: typing.Optional[int] = None
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Starts sending each frame using the ``screencastFrame`` event.

        **EXPERIMENTAL**

        :param format_: *(Optional)* Image compression format.
        :param quality: *(Optional)* Compression quality from range [0..100].
        :param max_width: *(Optional)* Maximum screenshot width.
        :param max_height: *(Optional)* Maximum screenshot height.
        :param every_nth_frame: *(Optional)* Send every n-th frame.
        '''
        params: T_JSON_DICT = dict()
        if format_ is not None:
            params['format'] = format_
        if quality is not None:
            params['quality'] = quality
        if max_width is not None:
            params['maxWidth'] = max_width
        if max_height is not None:
            params['maxHeight'] = max_height
        if every_nth_frame is not None:
            params['everyNthFrame'] = every_nth_frame
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.startScreencast',
            'params': params,
        }
        json = yield cmd_dict

    def stop_loading() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Force the page stop all navigations and pending resource fetches.
        '''
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.stopLoading',
        }
        json = yield cmd_dict

    def crash() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Crashes renderer on the IO thread, generates minidumps.

        **EXPERIMENTAL**
        '''
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.crash',
        }
        json = yield cmd_dict

    def close() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Tries to close page, running its beforeunload hooks, if any.
        '''
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.close',
        }
        json = yield cmd_dict

    def set_web_lifecycle_state(
            state: str
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Tries to update the web lifecycle state of the page.
        It will transition the page to the given state according to:
        https://github.com/WICG/web-lifecycle/

        **EXPERIMENTAL**

        :param state: Target lifecycle state
        '''
        params: T_JSON_DICT = dict()
        params['state'] = state
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.setWebLifecycleState',
            'params': params,
        }
        json = yield cmd_dict

    def stop_screencast() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Stops sending each frame in the ``screencastFrame``.

        **EXPERIMENTAL**
        '''
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.stopScreencast',
        }
        json = yield cmd_dict

    def produce_compilation_cache(
            scripts: typing.List[CompilationCacheParams]
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Requests backend to produce compilation cache for the specified scripts.
        ``scripts`` are appended to the list of scripts for which the cache
        would be produced. The list may be reset during page navigation.
        When script with a matching URL is encountered, the cache is optionally
        produced upon backend discretion, based on internal heuristics.
        See also: ``Page.compilationCacheProduced``.

        **EXPERIMENTAL**

        :param scripts:
        '''
        params: T_JSON_DICT = dict()
        params['scripts'] = [i.to_json() for i in scripts]
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.produceCompilationCache',
            'params': params,
        }
        json = yield cmd_dict

    def add_compilation_cache(
            url: str,
            data: str
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Seeds compilation cache for given url. Compilation cache does not survive
        cross-process navigation.

        **EXPERIMENTAL**

        :param url:
        :param data: Base64-encoded data (Encoded as a base64 string when passed over JSON)
        '''
        params: T_JSON_DICT = dict()
        params['url'] = url
        params['data'] = data
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.addCompilationCache',
            'params': params,
        }
        json = yield cmd_dict

    def clear_compilation_cache() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Clears seeded compilation cache.

        **EXPERIMENTAL**
        '''
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.clearCompilationCache',
        }
        json = yield cmd_dict

    def set_spc_transaction_mode(
            mode: str
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Sets the Secure Payment Confirmation transaction mode.
        https://w3c.github.io/secure-payment-confirmation/#sctn-automation-set-spc-transaction-mode

        **EXPERIMENTAL**

        :param mode:
        '''
        params: T_JSON_DICT = dict()
        params['mode'] = mode
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.setSPCTransactionMode',
            'params': params,
        }
        json = yield cmd_dict

    def set_rph_registration_mode(
            mode: str
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Extensions for Custom Handlers API:
        https://html.spec.whatwg.org/multipage/system-state.html#rph-automation

        **EXPERIMENTAL**

        :param mode:
        '''
        params: T_JSON_DICT = dict()
        params['mode'] = mode
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.setRPHRegistrationMode',
            'params': params,
        }
        json = yield cmd_dict

    def generate_test_report(
            message: str,
            group: typing.Optional[str] = None
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Generates a report for testing.

        **EXPERIMENTAL**

        :param message: Message to be displayed in the report.
        :param group: *(Optional)* Specifies the endpoint group to deliver the report to.
        '''
        params: T_JSON_DICT = dict()
        params['message'] = message
        if group is not None:
            params['group'] = group
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.generateTestReport',
            'params': params,
        }
        json = yield cmd_dict

    def wait_for_debugger() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Pauses page execution. Can be resumed using generic Runtime.runIfWaitingForDebugger.

        **EXPERIMENTAL**
        '''
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.waitForDebugger',
        }
        json = yield cmd_dict

    def set_intercept_file_chooser_dialog(
            enabled: bool,
            cancel: typing.Optional[bool] = None
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Intercept file chooser requests and transfer control to protocol clients.
        When file chooser interception is enabled, native file chooser dialog is not shown.
        Instead, a protocol event ``Page.fileChooserOpened`` is emitted.

        :param enabled:
        :param cancel: **(EXPERIMENTAL)** *(Optional)* If true, cancels the dialog by emitting relevant events (if any) in addition to not showing it if the interception is enabled (default: false).
        '''
        params: T_JSON_DICT = dict()
        params['enabled'] = enabled
        if cancel is not None:
            params['cancel'] = cancel
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.setInterceptFileChooserDialog',
            'params': params,
        }
        json = yield cmd_dict

    def set_prerendering_allowed(
            is_allowed: bool
        ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
        '''
        Enable/disable prerendering manually.

        This command is a short-term solution for https://crbug.com/1440085.
        See https://docs.google.com/document/d/12HVmFxYj5Jc-eJr5OmWsa2bqTJsbgGLKI6ZIyx0_wpA
        for more details.

        TODO(https://crbug.com/1440085): Remove this once Puppeteer supports tab targets.

        **EXPERIMENTAL**

        :param is_allowed:
        '''
        params: T_JSON_DICT = dict()
        params['isAllowed'] = is_allowed
        cmd_dict: T_JSON_DICT = {
            'method': 'Page.setPrerenderingAllowed',
            'params': params,
        }
        json = yield cmd_dict

    @event_class('Page.domContentEventFired')
    @dataclass
    class DomContentEventFired:
        timestamp: network.MonotonicTime

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> DomContentEventFired:
            return cls(
                timestamp=network.MonotonicTime.from_json(json['timestamp'])
            )

    @event_class('Page.fileChooserOpened')
    @dataclass
    class FileChooserOpened:
        '''
        Emitted only when ``page.interceptFileChooser`` is enabled.
        '''
        #: Id of the frame containing input node.
        frame_id: FrameId
        #: Input mode.
        mode: str
        #: Input node id. Only present for file choosers opened via an ``<input type="file">`` element.
        backend_node_id: typing.Optional[dom.BackendNodeId]

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> FileChooserOpened:
            return cls(
                frame_id=FrameId.from_json(json['frameId']),
                mode=str(json['mode']),
                backend_node_id=dom.BackendNodeId.from_json(json['backendNodeId']) if json.get('backendNodeId', None) is not None else None
            )

    @event_class('Page.frameAttached')
    @dataclass
    class FrameAttached:
        '''
        Fired when frame has been attached to its parent.
        '''
        #: Id of the frame that has been attached.
        frame_id: FrameId
        #: Parent frame identifier.
        parent_frame_id: FrameId
        #: JavaScript stack trace of when frame was attached, only set if frame initiated from script.
        stack: typing.Optional[runtime.StackTrace]

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> FrameAttached:
            return cls(
                frame_id=FrameId.from_json(json['frameId']),
                parent_frame_id=FrameId.from_json(json['parentFrameId']),
                stack=runtime.StackTrace.from_json(json['stack']) if json.get('stack', None) is not None else None
            )

    @deprecated(version="1.3")
    @event_class('Page.frameClearedScheduledNavigation')
    @dataclass
    class FrameClearedScheduledNavigation:
        '''
        Fired when frame no longer has a scheduled navigation.
        '''
        #: Id of the frame that has cleared its scheduled navigation.
        frame_id: FrameId

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> FrameClearedScheduledNavigation:
            return cls(
                frame_id=FrameId.from_json(json['frameId'])
            )

    @event_class('Page.frameDetached')
    @dataclass
    class FrameDetached:
        '''
        Fired when frame has been detached from its parent.
        '''
        #: Id of the frame that has been detached.
        frame_id: FrameId
        reason: str

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> FrameDetached:
            return cls(
                frame_id=FrameId.from_json(json['frameId']),
                reason=str(json['reason'])
            )

    @event_class('Page.frameSubtreeWillBeDetached')
    @dataclass
    class FrameSubtreeWillBeDetached:
        '''
        **EXPERIMENTAL**

        Fired before frame subtree is detached. Emitted before any frame of the
        subtree is actually detached.
        '''
        #: Id of the frame that is the root of the subtree that will be detached.
        frame_id: FrameId

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> FrameSubtreeWillBeDetached:
            return cls(
                frame_id=FrameId.from_json(json['frameId'])
            )

    @event_class('Page.frameNavigated')
    @dataclass
    class FrameNavigated:
        '''
        Fired once navigation of the frame has completed. Frame is now associated with the new loader.
        '''
        #: Frame object.
        frame: Frame
        type_: NavigationType

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> FrameNavigated:
            return cls(
                frame=Frame.from_json(json['frame']),
                type_=NavigationType.from_json(json['type'])
            )

    @event_class('Page.documentOpened')
    @dataclass
    class DocumentOpened:
        '''
        **EXPERIMENTAL**

        Fired when opening document to write to.
        '''
        #: Frame object.
        frame: Frame

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> DocumentOpened:
            return cls(
                frame=Frame.from_json(json['frame'])
            )

    @event_class('Page.frameResized')
    @dataclass
    class FrameResized:
        '''
        **EXPERIMENTAL**

        '''

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> FrameResized:
            return cls(

            )

    @event_class('Page.frameStartedNavigating')
    @dataclass
    class FrameStartedNavigating:
        '''
        **EXPERIMENTAL**

        Fired when a navigation starts. This event is fired for both
        renderer-initiated and browser-initiated navigations. For renderer-initiated
        navigations, the event is fired after ``frameRequestedNavigation``.
        Navigation may still be cancelled after the event is issued. Multiple events
        can be fired for a single navigation, for example, when a same-document
        navigation becomes a cross-document navigation (such as in the case of a
        frameset).
        '''
        #: ID of the frame that is being navigated.
        frame_id: FrameId
        #: The URL the navigation started with. The final URL can be different.
        url: str
        #: Loader identifier. Even though it is present in case of same-document
        #: navigation, the previously committed loaderId would not change unless
        #: the navigation changes from a same-document to a cross-document
        #: navigation.
        loader_id: network.LoaderId
        navigation_type: str

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> FrameStartedNavigating:
            return cls(
                frame_id=FrameId.from_json(json['frameId']),
                url=str(json['url']),
                loader_id=network.LoaderId.from_json(json['loaderId']),
                navigation_type=str(json['navigationType'])
            )

    @event_class('Page.frameRequestedNavigation')
    @dataclass
    class FrameRequestedNavigation:
        '''
        **EXPERIMENTAL**

        Fired when a renderer-initiated navigation is requested.
        Navigation may still be cancelled after the event is issued.
        '''
        #: Id of the frame that is being navigated.
        frame_id: FrameId
        #: The reason for the navigation.
        reason: ClientNavigationReason
        #: The destination URL for the requested navigation.
        url: str
        #: The disposition for the navigation.
        disposition: ClientNavigationDisposition

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> FrameRequestedNavigation:
            return cls(
                frame_id=FrameId.from_json(json['frameId']),
                reason=ClientNavigationReason.from_json(json['reason']),
                url=str(json['url']),
                disposition=ClientNavigationDisposition.from_json(json['disposition'])
            )

    @deprecated(version="1.3")
    @event_class('Page.frameScheduledNavigation')
    @dataclass
    class FrameScheduledNavigation:
        '''
        Fired when frame schedules a potential navigation.
        '''
        #: Id of the frame that has scheduled a navigation.
        frame_id: FrameId
        #: Delay (in seconds) until the navigation is scheduled to begin. The navigation is not
        #: guaranteed to start.
        delay: float
        #: The reason for the navigation.
        reason: ClientNavigationReason
        #: The destination URL for the scheduled navigation.
        url: str

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> FrameScheduledNavigation:
            return cls(
                frame_id=FrameId.from_json(json['frameId']),
                delay=float(json['delay']),
                reason=ClientNavigationReason.from_json(json['reason']),
                url=str(json['url'])
            )

    @event_class('Page.frameStartedLoading')
    @dataclass
    class FrameStartedLoading:
        '''
        **EXPERIMENTAL**

        Fired when frame has started loading.
        '''
        #: Id of the frame that has started loading.
        frame_id: FrameId

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> FrameStartedLoading:
            return cls(
                frame_id=FrameId.from_json(json['frameId'])
            )

    @event_class('Page.frameStoppedLoading')
    @dataclass
    class FrameStoppedLoading:
        '''
        **EXPERIMENTAL**

        Fired when frame has stopped loading.
        '''
        #: Id of the frame that has stopped loading.
        frame_id: FrameId

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> FrameStoppedLoading:
            return cls(
                frame_id=FrameId.from_json(json['frameId'])
            )

    @deprecated(version="1.3")
    @event_class('Page.downloadWillBegin')
    @dataclass
    class DownloadWillBegin:
        '''
        **EXPERIMENTAL**

        Fired when page is about to start a download.
        Deprecated. Use Browser.downloadWillBegin instead.
        '''
        #: Id of the frame that caused download to begin.
        frame_id: FrameId
        #: Global unique identifier of the download.
        guid: str
        #: URL of the resource being downloaded.
        url: str
        #: Suggested file name of the resource (the actual name of the file saved on disk may differ).
        suggested_filename: str

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> DownloadWillBegin:
            return cls(
                frame_id=FrameId.from_json(json['frameId']),
                guid=str(json['guid']),
                url=str(json['url']),
                suggested_filename=str(json['suggestedFilename'])
            )

    @deprecated(version="1.3")
    @event_class('Page.downloadProgress')
    @dataclass
    class DownloadProgress:
        '''
        **EXPERIMENTAL**

        Fired when download makes progress. Last call has ``done`` == true.
        Deprecated. Use Browser.downloadProgress instead.
        '''
        #: Global unique identifier of the download.
        guid: str
        #: Total expected bytes to download.
        total_bytes: float
        #: Total bytes received.
        received_bytes: float
        #: Download status.
        state: str

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> DownloadProgress:
            return cls(
                guid=str(json['guid']),
                total_bytes=float(json['totalBytes']),
                received_bytes=float(json['receivedBytes']),
                state=str(json['state'])
            )

    @event_class('Page.interstitialHidden')
    @dataclass
    class InterstitialHidden:
        '''
        Fired when interstitial page was hidden
        '''

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> InterstitialHidden:
            return cls(

            )

    @event_class('Page.interstitialShown')
    @dataclass
    class InterstitialShown:
        '''
        Fired when interstitial page was shown
        '''

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> InterstitialShown:
            return cls(

            )

    @event_class('Page.javascriptDialogClosed')
    @dataclass
    class JavascriptDialogClosed:
        '''
        Fired when a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload) has been
        closed.
        '''
        #: Frame id.
        frame_id: FrameId
        #: Whether dialog was confirmed.
        result: bool
        #: User input in case of prompt.
        user_input: str

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> JavascriptDialogClosed:
            return cls(
                frame_id=FrameId.from_json(json['frameId']),
                result=bool(json['result']),
                user_input=str(json['userInput'])
            )

    @event_class('Page.javascriptDialogOpening')
    @dataclass
    class JavascriptDialogOpening:
        '''
        Fired when a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload) is about to
        open.
        '''
        #: Frame url.
        url: str
        #: Frame id.
        frame_id: FrameId
        #: Message that will be displayed by the dialog.
        message: str
        #: Dialog type.
        type_: DialogType
        #: True iff browser is capable showing or acting on the given dialog. When browser has no
        #: dialog handler for given target, calling alert while Page domain is engaged will stall
        #: the page execution. Execution can be resumed via calling Page.handleJavaScriptDialog.
        has_browser_handler: bool
        #: Default dialog prompt.
        default_prompt: typing.Optional[str]

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> JavascriptDialogOpening:
            return cls(
                url=str(json['url']),
                frame_id=FrameId.from_json(json['frameId']),
                message=str(json['message']),
                type_=DialogType.from_json(json['type']),
                has_browser_handler=bool(json['hasBrowserHandler']),
                default_prompt=str(json['defaultPrompt']) if json.get('defaultPrompt', None) is not None else None
            )

    @event_class('Page.lifecycleEvent')
    @dataclass
    class LifecycleEvent:
        '''
        Fired for lifecycle events (navigation, load, paint, etc) in the current
        target (including local frames).
        '''
        #: Id of the frame.
        frame_id: FrameId
        #: Loader identifier. Empty string if the request is fetched from worker.
        loader_id: network.LoaderId
        name: str
        timestamp: network.MonotonicTime

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> LifecycleEvent:
            return cls(
                frame_id=FrameId.from_json(json['frameId']),
                loader_id=network.LoaderId.from_json(json['loaderId']),
                name=str(json['name']),
                timestamp=network.MonotonicTime.from_json(json['timestamp'])
            )

    @event_class('Page.backForwardCacheNotUsed')
    @dataclass
    class BackForwardCacheNotUsed:
        '''
        **EXPERIMENTAL**

        Fired for failed bfcache history navigations if BackForwardCache feature is enabled. Do
        not assume any ordering with the Page.frameNavigated event. This event is fired only for
        main-frame history navigation where the document changes (non-same-document navigations),
        when bfcache navigation fails.
        '''
        #: The loader id for the associated navigation.
        loader_id: network.LoaderId
        #: The frame id of the associated frame.
        frame_id: FrameId
        #: Array of reasons why the page could not be cached. This must not be empty.
        not_restored_explanations: typing.List[BackForwardCacheNotRestoredExplanation]
        #: Tree structure of reasons why the page could not be cached for each frame.
        not_restored_explanations_tree: typing.Optional[BackForwardCacheNotRestoredExplanationTree]

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> BackForwardCacheNotUsed:
            return cls(
                loader_id=network.LoaderId.from_json(json['loaderId']),
                frame_id=FrameId.from_json(json['frameId']),
                not_restored_explanations=[BackForwardCacheNotRestoredExplanation.from_json(i) for i in json['notRestoredExplanations']],
                not_restored_explanations_tree=BackForwardCacheNotRestoredExplanationTree.from_json(json['notRestoredExplanationsTree']) if json.get('notRestoredExplanationsTree', None) is not None else None
            )

    @event_class('Page.loadEventFired')
    @dataclass
    class LoadEventFired:
        timestamp: network.MonotonicTime

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> LoadEventFired:
            return cls(
                timestamp=network.MonotonicTime.from_json(json['timestamp'])
            )

    @event_class('Page.navigatedWithinDocument')
    @dataclass
    class NavigatedWithinDocument:
        '''
        **EXPERIMENTAL**

        Fired when same-document navigation happens, e.g. due to history API usage or anchor navigation.
        '''
        #: Id of the frame.
        frame_id: FrameId
        #: Frame's new url.
        url: str
        #: Navigation type
        navigation_type: str

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> NavigatedWithinDocument:
            return cls(
                frame_id=FrameId.from_json(json['frameId']),
                url=str(json['url']),
                navigation_type=str(json['navigationType'])
            )

    @event_class('Page.screencastFrame')
    @dataclass
    class ScreencastFrame:
        '''
        **EXPERIMENTAL**

        Compressed image data requested by the ``startScreencast``.
        '''
        #: Base64-encoded compressed image. (Encoded as a base64 string when passed over JSON)
        data: str
        #: Screencast frame metadata.
        metadata: ScreencastFrameMetadata
        #: Frame number.
        session_id: int

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> ScreencastFrame:
            return cls(
                data=str(json['data']),
                metadata=ScreencastFrameMetadata.from_json(json['metadata']),
                session_id=int(json['sessionId'])
            )

    @event_class('Page.screencastVisibilityChanged')
    @dataclass
    class ScreencastVisibilityChanged:
        '''
        **EXPERIMENTAL**

        Fired when the page with currently enabled screencast was shown or hidden .
        '''
        #: True if the page is visible.
        visible: bool

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> ScreencastVisibilityChanged:
            return cls(
                visible=bool(json['visible'])
            )

    @event_class('Page.windowOpen')
    @dataclass
    class WindowOpen:
        '''
        Fired when a new window is going to be opened, via window.open(), link click, form submission,
        etc.
        '''
        #: The URL for the new window.
        url: str
        #: Window name.
        window_name: str
        #: An array of enabled window features.
        window_features: typing.List[str]
        #: Whether or not it was triggered by user gesture.
        user_gesture: bool

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> WindowOpen:
            return cls(
                url=str(json['url']),
                window_name=str(json['windowName']),
                window_features=[str(i) for i in json['windowFeatures']],
                user_gesture=bool(json['userGesture'])
            )

    @event_class('Page.compilationCacheProduced')
    @dataclass
    class CompilationCacheProduced:
        '''
        **EXPERIMENTAL**

        Issued for every compilation cache generated.
        '''
        url: str
        #: Base64-encoded data (Encoded as a base64 string when passed over JSON)
        data: str

        @classmethod
        def from_json(cls, json: T_JSON_DICT) -> CompilationCacheProduced:
            return cls(
                url=str(json['url']),
                data=str(json['data'])
            )