code: def lines_once(cls, code, **kwargs):
          
          if kwargs:
              g = cls.with_id_processor()
              g._append_context(kwargs)
          else:
              g = cls()
          g.lines(code)
          return g.code
docs: One-off code generation using :meth:`lines`.
          
          If keyword args are provided, initialized using
          :meth:`with_id_processor`.