docs: def do_meta(self, line):
          """meta <identifier> [file] Get the System Metadata that is associated with a
          Science Object.
  
          If the metadata is not on the Coordinating Node, the Member Node is checked.
  
          Provide ``file`` to save the System Metada to disk instead of displaying it.
  
          """
          pid, output_file = self._split_args(line, 1, 1)
          self._command_processor.system_metadata_get(pid, output_file)
          if output_file is not None:
              self._print_info_if_verbose(
                  'Downloaded system metadata for "{}" to file: {}'.format(
                      pid, output_file
                  )
              )