code: def test_preprocessing_dtype(self):
      super(KitchenSinkComponent, self)._test_preprocessing_dtype(
          RandomKitchenSinks
      )
  
imports: from autosklearn.pipeline.components.feature_preprocessing.kitchen_sinks import RandomKitchenSinks
  from autosklearn.pipeline.util import PreprocessingTestCase, _test_preprocessing
  import unittest
label_desc: Use image node_id 2 for calling the KitchenSinkComponent obj's underlying member method code with example usage: obj.test_preprocessing_dtype() without return types