docs: def do_blockrep(self, line):
          """blockrep <member node> [member node ...] Add one or more blocked Member Node
          to replication policy."""
          mns = self._split_args(line, 1, -1)
          self._command_processor.get_session().get_replication_policy().add_blocked(mns)
          self._print_info_if_verbose(
              "Set {} as blocked replication target(s)".format(", ".join(mns))
          )