cxx_reg_code.append('.Attr("{}")'.format(py_str))
    for output_ in all_dec_args.get('outputs', []):
      cxx_reg_code.append('.Output("{}")'.format(output_))
    cxx_reg_code[-1] += ';\n'
    self.emit('\n    '.join(cxx_reg_code))


class OpRegGen(transpiler.GenericTranspiler):
  """Transforms Python objects into TFR MLIR source code."""

  def transform_ast(self, node, ctx):
    gen = OpRegGenImpl(ctx)