docs: def send_audio_file(
          self, audio_file, device_state, authentication_headers,
          dialog_request_id, distance_profile, audio_format
      ):
          """
          Send audio to AVS
  
          The file-like object are steaming uploaded for improved latency.
  
          Returns:
              bytes -- wav audio bytes returned from AVS
  
          """
  
          payload = {
              'context': device_state,
              'event': {
                  'header': {
                      'namespace': 'SpeechRecognizer',
                      'name': 'Recognize',
                      'messageId': self.generate_message_id(),
                      'dialogRequestId': dialog_request_id,
                  },
                  'payload': {
                      'profile': distance_profile,
                      'format': audio_format
                  }
              }
          }
          multipart_data = MultipartEncoder(
              fields=[
                  (
                      'request', (
                          'request',
                          json.dumps(payload),
                          'application/json;',
                          {'Content-Disposition': "form-data; name='request'"}
                      ),
                  ),
                  (
                      'audio', (
                          'audio',
                          audio_file,
                          'application/octet-stream',
                          {'Content-Disposition': "form-data; name='audio'"}
                      )
                  ),
              ],
              boundary='boundary',
          )
          headers = {
              **authentication_headers,
              'Content-Type': multipart_data.content_type
          }
          stream_id = self.connection.request(
              'POST',
              '/v20160207/events',
              headers=headers,
              body=multipart_data,
          )
          response = self.connection.get_response(stream_id)
          return self.parse_response(response)