code: def test_relative_month():
      td_time = "1 month"
      td = _check_timedelta(td_time)
      assert td.get_value("mo") == 1
      assert isinstance(td.delta_obj, relativedelta)
  
      time = pd.to_datetime("2020-01-31")
      assert time + td == pd.to_datetime("2020-02-29")
  
      td_time = "6 months"
      td = _check_timedelta(td_time)
      assert td.get_value("mo") == 6
      assert isinstance(td.delta_obj, relativedelta)
  
      time = pd.to_datetime("2020-01-31")
      assert time + td == pd.to_datetime("2020-07-31")
  
imports: import pandas
  import pytest
  from dateutil.relativedelta import relativedelta
  from featuretools.entityset import Timedelta
  from featuretools.feature_base import Feature
  from featuretools.primitives import Count
  from featuretools.tests.testing_utils import to_pandas
  from featuretools.utils.wrangle import _check_timedelta
label_desc: Use image node_id 12 for calling a global function with example usage: test_relative_month() without return types