Method once

playwright/sync_api/_generated.py:6934–6939

Emitted when this dedicated [WebWorker](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API) is terminated.

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

    @typing.overload
    def once(
        self, event: Literal["close"], f: typing.Callable[["Worker"], "None"]
    ) -> None:
        """
        Emitted when this dedicated [WebWorker](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API) is
        terminated."""

    @typing.overload
    def once(