code: def get_datetime(self, timestamp: str, unix=True):
          
          time = datetime.strptime(timestamp, '%Y%m%dT%H%M%S.%fZ')
          if unix:
              return int(time.timestamp())
          else:
              return time
docs: Converts a %Y%m%dT%H%M%S.%fZ to a UNIX timestamp
          or a datetime.datetime object
  
          Parameters
          ---------
          timestamp: str
              A timstamp in the %Y%m%dT%H%M%S.%fZ format, usually returned by the API
              in the ``created_time`` field for example (eg. 20180718T145906.000Z)
          unix: Optional[bool] = True
              Whether to return a POSIX timestamp (seconds since epoch) or not
  
          Returns int or datetime.datetime