def get_all(self):
    self._start_server()
    self._broadcast_message(self.amount_of_broadcasted_messages)
    robots = set()
    while True:
        response = self._get_response()
        if response:
            robots.add(response)
        else:
            break
    return robots
def get_all(self):
    self._start_server()
    self._broadcast_message(self.amount_of_broadcasted_messages)
    robots = set()
    while True:
        response = self._get_response()
        if response:
            robots.add(response)
        else:
            break
    return robots