code: def test_clean_conditions():
      # Arrange
      check = (
          DummyCheck()
          .add_condition("a", lambda r: True)
          .add_condition("b", lambda r: True)
      )
  
      # Act & Assert
      assert_that(check, has_property("_conditions", has_length(2)))
      check.clean_conditions()
      assert_that(check, has_property("_conditions", has_length(0)))
  
imports: import numpy
  import pandas
  from hamcrest import *
  from deepchecks import __version__
  from deepchecks.core import BaseCheck, CheckResult, ConditionResult
  from deepchecks.core.condition import ConditionCategory
  from deepchecks.core.errors import DeepchecksValueError
  from deepchecks.tabular import Context, TrainTestCheck
label_desc: Use image node_id 5 for calling a global function with example usage: test_clean_conditions() without return types