code: def _render_op(
              self, identifier, hs=None, dagger=False, args=None, superop=False):
          
          hs_label = None
          if hs is not None and self._settings['show_hs_label']:
              hs_label = self._render_hs_label(hs)
          name, total_subscript, total_superscript, args_str \
              = self._split_op(identifier, hs_label, dagger, args)
          if self._settings['unicode_op_hats'] and len(name) == 1:
              if superop:
                  res = name
              else:
                  res = modifier_dict['hat'](name)
          else:
              res = name
          res = render_unicode_sub_super(
              res, [total_subscript], [total_superscript], sub_first=True,
              translate_symbols=True,
              unicode_sub_super=self._settings['unicode_sub_super'])
          res += args_str
          return res
docs: Render an operator
  
          Args:
              identifier (str or SymbolicLabelBase): The identifier (name/symbol)
                  of the operator. May include a subscript, denoted by '_'.
              hs (HilbertSpace): The Hilbert space in which the operator is
                  defined
              dagger (bool): Whether the operator should be daggered
              args (list): A list of expressions that will be rendered with
                  :meth:`doprint`, joined with commas, enclosed in parenthesis
              superop (bool): Whether the operator is a super-operator