def do_archive(self, line):
        """archive <identifier> [identifier ...] Mark one or more existing Science
        Objects as archived."""
        pids = self._split_args(line, 1, -1)
        self._command_processor.science_object_archive(pids)
        self._print_info_if_verbose(
            "Added archive operation for identifier(s) {} to write queue".format(
                ", ".join(pids)
            )
        )