code: def test_type_annotation_not_empty_for_internal_op(self):
      for internal_op in [
          data_flow_ops.dynamic_stitch,
          gen_nn_ops._fused_batch_norm,
          gen_math_ops.add,
      ]:
          sig = inspect.signature(internal_op)
          for key in sig.parameters:
              if key == "name":
                  continue
              assert (
                  sig.parameters[key].annotation
                  != inspect.Signature.empty
              )
  
file_path: tensorflow/tensorflow/python/framework/python_op_gen_annotation_test.py
imports: import inspect
  from tensorflow.python.ops import data_flow_ops
  from tensorflow.python.ops import gen_math_ops
  from tensorflow.python.ops import gen_nn_ops
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 1 for calling the PythonOpGetTest obj's underlying member method code with example usage: obj.test_type_annotation_not_empty_for_internal_op() without return types