Method once

playwright/sync_api/_generated.py:15579–15584

Emitted when the session is closed, either because the target was closed or `session.detach()` was called.

(
        self, event: Literal["close"], f: typing.Callable[["CDPSession"], "None"]
    )

    @typing.overload
    def once(
        self, event: Literal["close"], f: typing.Callable[["CDPSession"], "None"]
    ) -> None:
        """
        Emitted when the session is closed, either because the target was closed or `session.detach()` was called.
        """

    @typing.overload
    def once(self, event: str, f: typing.Callable[..., None]) -> None: ...