class_docstr: Base class for all RequestBuilders.
class_docstr_tok: ["Base","class","for","all","RequestBuilders","."]
code: def __init__(self):
      self._records = []  # type: List[bytes]
      self._payload_format = (
          example_gen_pb2.PayloadFormat.FORMAT_UNSPECIFIED
      )
  
imports: import abc
  import os
  from typing import Any, Iterable, List, Mapping, Optional
  from absl import logging
  import tensorflow
  from tfx import types
  from tfx.components.infra_validator import types
  from tfx.components.util import examples_utils
  from tfx.components.util import tfxio_utils
  from tfx.dsl.io import fileio
  from tfx.proto import example_gen_pb2
  from tfx.proto import infra_validator_pb2
  from tfx.types import artifact_utils
  from tfx.utils import path_utils
  from tfx_bsl.tfxio import dataset_options
  from tensorflow.python.saved_model import loader_impl
  from tensorflow_serving.apis import classification_pb2
  from tensorflow_serving.apis import predict_pb2
  from tensorflow_serving.apis import regression_pb2
label_desc: Use image node_id 1 to create a new _BaseRequestBuilder object from inherited base classes: abc with example: obj = _BaseRequestBuilder()