code: def test_get_int_domain_feature_level_domain(self):
      schema = text_format.Parse(
          """
          feature {
            name: "feature1"
            int_domain {
              name: "domain1"
            }
          }
          """,
          schema_pb2.Schema(),
      )
  
      domain1 = schema_util.get_domain(schema, "feature1")
      self.assertIsInstance(domain1, schema_pb2.IntDomain)
      self.assertEqual(domain1.name, "domain1")
      # Check to verify that we are operating on the same domain object.
      self.assertIs(domain1, schema_util.get_domain(schema, "feature1"))
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  from absl import flags
  from absl.testing import absltest
  from absl.testing import parameterized
  from tensorflow_data_validation import types
  from tensorflow_data_validation.utils import schema_util
  from google.protobuf import text_format
  from tensorflow_metadata.proto.v0 import schema_pb2
label_desc: Use image node_id 9 for calling the SchemaUtilTest obj's underlying member method code with example usage: obj.test_get_int_domain_feature_level_domain() without return types