code: def test_quantization_config_repr(self):
      quantization_config = tpu_embedding_v2_utils.QuantizationConfig(
          num_buckets=10, lower=-1.0, upper=1.0
      )
  
      self.assertEqual(
          repr(quantization_config),
          "QuantizationConfig(num_buckets=10, lower=-1.0, upper=1.0)",
      )
  
imports: from absl.testing import parameterized
  from tensorflow.core.protobuf.tpu import tpu_embedding_configuration_pb2
  from tensorflow.python.compat import v2_compat
  from tensorflow.python.platform import test
  from tensorflow.python.tpu import tpu_embedding_v2_utils
label_desc: Use image node_id 4 for calling the ConfigTest obj's underlying member method code with example usage: obj.test_quantization_config_repr() without return types