outputs=outputs,
          init_op=lookup_ops.tables_initializer(),
          assets_collection=ops.get_collection(ops.GraphKeys.ASSET_FILEPATHS),
      )

    return inputs, outputs

  def _create_data_generator(
      self,
      input_key: str,
      shape: Sequence[int],
      minval: float = -1.0,
      maxval: float = 1.0,
      dtype: dtypes.DType = dtypes.float32,
      num_examples: int = 8,