docs: def do_update(self, line):
          """update <old-pid> <new-pid> <file> Replace an existing Science Object in a.
  
          :term:`MN` with another.
  
          """
          curr_pid, pid_new, input_file = self._split_args(line, 3, 0)
          self._command_processor.science_object_update(curr_pid, input_file, pid_new)
          self._print_info_if_verbose(
              'Added update operation for identifier "{}" to write queue'.format(curr_pid)
          )