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How to use _setup_navigation_wait_helper method in Playwright Python

Best Python code snippet using playwright-python

_frame.py

Source:_frame.py

...102            from_nullable_channel(103                await self._channel.send("goto", locals_to_params(locals()))104            ),105        )106    def _setup_navigation_wait_helper(self, timeout: float = None) -> WaitHelper:107        wait_helper = WaitHelper(self._loop)108        wait_helper.reject_on_event(109            self._page, "close", Error("Navigation failed because page was closed!")110        )111        wait_helper.reject_on_event(112            self._page, "crash", Error("Navigation failed because page crashed!")113        )114        wait_helper.reject_on_event(115            self._page,116            "framedetached",117            Error("Navigating frame was detached!"),118            lambda frame: frame == self,119        )120        if timeout is None:121            timeout = self._page._timeout_settings.navigation_timeout()122        wait_helper.reject_on_timeout(timeout, f"Timeout {timeout}ms exceeded.")123        return wait_helper124    def expect_navigation(125        self,126        url: URLMatch = None,127        wait_until: DocumentLoadState = None,128        timeout: float = None,129    ) -> EventContextManagerImpl[Response]:130        if not wait_until:131            wait_until = "load"132        if timeout is None:133            timeout = self._page._timeout_settings.navigation_timeout()134        deadline = monotonic_time() + timeout135        wait_helper = self._setup_navigation_wait_helper(timeout)136        matcher = URLMatcher(url) if url else None137        def predicate(event: Any) -> bool:138            # Any failed navigation results in a rejection.139            if event.get("error"):140                return True141            return not matcher or matcher.matches(event["url"])142        wait_helper.wait_for_event(143            self._event_emitter,144            "navigated",145            predicate=predicate,146        )147        async def continuation() -> Optional[Response]:148            event = await wait_helper.result()149            if "error" in event:150                raise Error(event["error"])151            if wait_until not in self._load_states:152                t = deadline - monotonic_time()153                if t > 0:154                    await self.wait_for_load_state(state=wait_until, timeout=t)155            if "newDocument" in event and "request" in event["newDocument"]:156                request = from_channel(event["newDocument"]["request"])157                return await request.response()158            return None159        return EventContextManagerImpl(asyncio.create_task(continuation()))160    async def wait_for_load_state(161        self, state: DocumentLoadState = None, timeout: float = None162    ) -> None:163        if not state:164            state = "load"165        if state not in ("load", "domcontentloaded", "networkidle"):166            raise Error("state: expected one of (load|domcontentloaded|networkidle)")167        if state in self._load_states:168            return169        wait_helper = self._setup_navigation_wait_helper(timeout)170        wait_helper.wait_for_event(171            self._event_emitter, "loadstate", lambda s: s == state172        )173        await wait_helper.result()174    async def frame_element(self) -> ElementHandle:175        return from_channel(await self._channel.send("frameElement"))176    async def evaluate(self, expression: str, arg: Serializable = None) -> Any:177        return parse_result(178            await self._channel.send(179                "evaluateExpression",180                dict(181                    expression=expression,182                    arg=serialize_argument(arg),183                ),...

Playwright tutorial

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