waitForPhotoMessage method
Wait for a photo message from the user.
Possibly returns null
if the listener has been cancelled before
it completes. Otherwise, returns a Context object with the incoming update.
Implementation
Future<Context?> waitForPhotoMessage({
required ID chatId,
Duration? timeout,
bool clearUnfulfilled = true,
}) async {
return await waitFor(
chatId: chatId,
timeout: timeout,
filter: (up) => up.message?.photo != null,
handlerName: "photo",
clearUnfulfilled: clearUnfulfilled,
);
}