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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def send_audio(self, audio, **options):
 """ Send an mp3 audio file to the chat. :param audio: Object containing the audio data :param options: Additional sendAudio options (see https://core.telegram.org/bots/api#sendaudio) :Example: """

        return self.bot.api_call(
            "sendAudio", chat_id=str(self.id), audio=audio, **options
        )