code: def test_import_relative_delta_all():
      from dateutil.relativedelta import relativedelta
      from dateutil.relativedelta import MO, TU, WE, TH, FR, SA, SU
  
      for var in (relativedelta, MO, TU, WE, TH, FR, SA, SU):
          assert var is not None
  
      # In the public interface but not in all
      from dateutil.relativedelta import weekday
  
      assert weekday is not None
  
imports: import sys
  import pytest
label_desc: Use image node_id 11 for calling a global function with example usage: test_import_relative_delta_all() without return types