return {TFRTypes.INDEX}, None

    elif f_type == (TFRTypes.TFR_BUILTIN_FUNC,):
      op_name = name.qn[0]
      if callable(TFR_BUILTINS[op_name]):
        return {TFR_BUILTINS[op_name](*[list(arg)[0] for arg in args])}, None
      return {TFR_BUILTINS[op_name]}, None

    elif f_type == (TFRTypes.TF_TENSOR_SHAPE_FUNC,):
      return {TFRTypes.TF_TENSOR_SHAPE_LIST}, None