code: def _ExtractSqlSliceKey(
      extracts: beam.pvalue.PCollection,
      eval_config: config_pb2.EvalConfig,
  ) -> beam.pvalue.PCollection:
      return extracts | beam.ParDo(ExtractSqlSliceKeyFn(eval_config))
  
imports: import copy
  import functools
  from typing import List, Mapping
  import apache_beam
  import pyarrow
  import tensorflow
  from tensorflow_model_analysis import constants
  from tensorflow_model_analysis.api import types
  from tensorflow_model_analysis.extractors import extractor
  from tensorflow_model_analysis.proto import config_pb2
  from tensorflow_model_analysis.slicer import slicer_lib
  from tensorflow_model_analysis.utils import util
  from tfx_bsl.arrow import sql_util
  from tfx_bsl.tfxio import tensor_to_arrow
label_desc: Use image node_id 2 for calling a global function with example usage: _ExtractSqlSliceKey(extracts, eval_config) and returns: unknown