code: def testDeserializeSliceKey(self):
      slice_metrics = text_format.Parse(
          """
            single_slice_keys {
              column: 'age'
              int64_value: 5
            }
            single_slice_keys {
              column: 'language'
              bytes_value: 'english'
            }
            single_slice_keys {
              column: 'price'
              float_value: 1.0
            }
          """,
          metrics_for_slice_pb2.SliceKey(),
      )
  
      got_slice_key = slicer.deserialize_slice_key(slice_metrics)
      self.assertCountEqual(
          [("age", 5), ("language", "english"), ("price", 1.0)],
          got_slice_key,
      )
  
imports: from absl.testing import parameterized
  import apache_beam
  from apache_beam.testing import util
  import numpy
  import six
  import tensorflow
  from tensorflow_model_analysis import constants
  from tensorflow_model_analysis.api import types
  from tensorflow_model_analysis.eval_saved_model import testutil
  from tensorflow_model_analysis.extractors import slice_key_extractor
  from tensorflow_model_analysis.post_export_metrics import metric_keys
  from tensorflow_model_analysis.proto import config_pb2
  from tensorflow_model_analysis.proto import metrics_for_slice_pb2
  from tensorflow_model_analysis.slicer import slicer_lib
  from google.protobuf import text_format
label_desc: Use image node_id 4 for calling the SlicerTest obj's underlying member method code with example usage: obj.testDeserializeSliceKey() without return types