def _on_connection_blocked(self, user_callback, method_frame):
        self._ready_events.append(
            _ConnectionBlockedEvt(user_callback, method_frame))
Return center frequency of tuner in megahertz.
dataset/ETHPy150Open pika/pika/pika/adapters/blocking_connection.py/BlockingConnection._on_connection_blocked--crossover with--dataset/ETHPy150Open adafruit/FreqShow/model.py/FreqShowModel.get_center_freq