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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 _PrintProcessingTime(self, processing_status):
 """Prints the processing time. Args: processing_status (ProcessingStatus):
 processing status. """

    if not processing_status:
      processing_time = '00:00:00'
    else:
      processing_time = time.time() - processing_status.start_time
      time_struct = time.gmtime(processing_time)
      processing_time = time.strftime('%H:%M:%S', time_struct)

    self._output_writer.Write(
        'Processing time\t\t: {0:s}\n'.format(processing_time))