code: def test_write_load_schema_text(self):
      schema = text_format.Parse(
          """
          feature {
            name: "feature1"
          }
          feature {
            name: "feature2"
          }
          """,
          schema_pb2.Schema(),
      )
  
      schema_path = os.path.join(FLAGS.test_tmpdir, "schema.pbtxt")
      schema_util.write_schema_text(
          schema=schema, output_path=schema_path
      )
      loaded_schema = schema_util.load_schema_text(
          input_path=schema_path
      )
      self.assertEqual(schema, loaded_schema)
  
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 15 for calling the SchemaUtilTest obj's underlying member method code with example usage: obj.test_write_load_schema_text() without return types