Waits until the cast device is ready for communication. The device
        is ready as soon a status message has been received.

        If the worker thread is not already running, it will be started.

        If the status has already been received then the method returns
        immediately.

        :param timeout: a floating point number specifying a timeout for the
                        operation in seconds (or fractions thereof). Or None
                        to block forever.

def wait(self, timeout=None):
        """
        Waits until the cast device is ready for communication. The device
        is ready as soon a status message has been received.

        If the worker thread is not already running, it will be started.

        If the status has already been received then the method returns
        immediately.

        :param timeout: a floating point number specifying a timeout for the
                        operation in seconds (or fractions thereof). Or None
                        to block forever.
        """
        if not self.socket_client.isAlive():
            self.socket_client.start()
        self.status_event.wait(timeout=timeout)