code: def test_cohort_filter_serialization_in_range_method(self):
      cohort_filter_1 = CohortFilter(
          method=CohortFilterMethods.METHOD_RANGE,
          arg=[65.0, 70.0],
          column="age",
      )
      json_str = json.dumps(
          cohort_filter_1, default=cohort_filter_json_converter
      )
      assert CohortFilterMethods.METHOD_RANGE in json_str
      assert "65.0" in json_str
      assert "70.0" in json_str
      assert "age" in json_str
  
imports: import json
  import pandas
  import pytest
  from raiutils.cohort import ClassificationOutcomes, Cohort, CohortFilter, CohortFilterMethods, cohort_filter_json_converter
  from raiutils.exceptions import UserConfigValidationException
label_desc: Use image node_id 9 for calling the TestCohortFilter obj's underlying member method code with example usage: obj.test_cohort_filter_serialization_in_range_method() without return types