class_docstr: Tests for serialization, deserialization helpers.
class_docstr_tok: ["Tests","for","serialization",",","deserialization","helpers","."]
code: def test_deserialize_config_missing_key(self):
      config_missing_key = {
          "config": {
              # Dtype is missing and should cause a failure.
              # 'dtype': 'int32',
              "default_value": None,
              "key": "a",
              "normalizer_fn": None,
              "shape": (2,),
          },
          "class_name": "NumericColumn",
      }
  
      with self.assertRaisesRegex(
          ValueError, "Invalid config:.*expected keys.*dtype"
      ):
          serialization.deserialize_feature_column(config_missing_key)
  
file_path: tensorflow/tensorflow/python/feature_column/serialization_test.py
imports: from tensorflow.python.feature_column import feature_column_v2
  from tensorflow.python.feature_column import serialization
  from tensorflow.python.platform import test
label_desc: Use image node_id 3 for calling the FeatureColumnSerializationTest obj's underlying member method code with example usage: obj.test_deserialize_config_missing_key() without return types