code: def deserialize_cross_slice_key(
      cross_slice_key: metrics_for_slice_pb2.CrossSliceKey,
  ) -> CrossSliceKeyType:
      """Converts CrossSliceKey proto to CrossSliceKeyType.
  
      Args:
        cross_slice_key: The cross slice key in the format of proto CrossSliceKey.
  
      Returns:
        The cross slice key in the format of CrossSliceKeyType.
  
      Raises:
        TypeError: If the evaluate type is unrecognized.
      """
      baseline_key = deserialize_slice_key(
          cross_slice_key.baseline_slice_key
      )
      comparison_key = deserialize_slice_key(
          cross_slice_key.comparison_slice_key
      )
      return (baseline_key, comparison_key)
  
imports: import itertools
  from typing import Any, Callable, Dict, Generator, Iterable, List, NamedTuple, Optional, Tuple, Union
  import apache_beam
  import numpy
  import tensorflow
  from tensorflow_model_analysis import constants
  from tensorflow_model_analysis.api import types
  from tensorflow_model_analysis.proto import config_pb2
  from tensorflow_model_analysis.proto import metrics_for_slice_pb2
  from tensorflow_model_analysis.slicer import slice_accessor
label_desc: Use image node_id 6 for calling a global function with example usage: deserialize_cross_slice_key(cross_slice_key) and returns: baseline_key,  comparison_key