code: def _execute_command(self, command, workunit_name=None, workunit_labels=None):
      
      workunit_name = workunit_name or command.executable
      workunit_labels = {WorkUnitLabel.TOOL} | set(workunit_labels or ())
      with self.context.new_workunit(name=workunit_name,
                                     labels=workunit_labels,
                                     cmd=str(command)) as workunit:
        returncode = self._run_node_distribution_command(command, workunit)
        workunit.set_outcome(WorkUnit.SUCCESS if returncode == 0 else WorkUnit.FAILURE)
        return returncode, command
docs: Executes a node or npm command via self._run_node_distribution_command.
  
      :param NodeDistribution.Command command: The command to run.
      :param string workunit_name: A name for the execution's work unit; default command.executable.
      :param list workunit_labels: Any extra :class:`pants.base.workunit.WorkUnitLabel`s to apply.
      :returns: A tuple of (returncode, command).
      :rtype: A tuple of (int,
              :class:`pants.contrib.node.subsystems.node_distribution.NodeDistribution.Command`)