docs: def parse_output(self, hostname, output):
          """Parse plowup's output.
  
          For now, we just return the last line.
  
          :param hostname: Name of host you are working with.
          :type hostname: str
          :param output: Dictionary containing information about a plowshare
                         action.
          :type output: dict
          :returns: Parsed and decoded output list.
          :rtype: list
          """
          if isinstance(output, bytes):
              output = output.decode('utf-8')
          return output.split()[-1]