code: def add_cmd_output_scl(self, scl, cmds, **kwargs):
          
          if isinstance(cmds, six.string_types):
              cmds = [cmds]
          scl_cmds = []
          for cmd in cmds:
              scl_cmds.append(self.convert_cmd_scl(scl, cmd))
          self.add_cmd_output(scl_cmds, **kwargs)
docs: Same as add_cmd_output, except that it wraps command in
          "scl enable" call and sets proper PATH.