How to organize customized expectations via expectation suite in GX core 1.2.x

This solution worked for me.

expectation_path = "./great_expectations/expectations/ge_attribute.json"
    if os.path.exists(expectation_path):
       with open(expectation_path) as json_file:
          suite_json = json.load(json_file)
          self.expectation_suite = ge.ExpectationSuite(**suite_json)