code: def test_preprocessing_dataclass_field():
      binary_preproc_dataclass = PreprocessingDataclassField("binary")
      assert binary_preproc_dataclass.default_factory is not None
      assert (
          get_marshmallow_from_dataclass_field(
              binary_preproc_dataclass
          ).allow_none
          is False
      )
      assert (
          binary_preproc_dataclass.default_factory()
          == BinaryPreprocessingConfig()
      )
  
      category_preproc_dataclass = PreprocessingDataclassField(
          "category"
      )
      assert category_preproc_dataclass.default_factory is not None
      assert (
          get_marshmallow_from_dataclass_field(
              category_preproc_dataclass
          ).allow_none
          is False
      )
      assert (
          category_preproc_dataclass.default_factory()
          == CategoryPreprocessingConfig()
      )
  
imports: from ludwig.schema.features.preprocessing.binary import BinaryPreprocessingConfig
  from ludwig.schema.features.preprocessing.category import CategoryPreprocessingConfig
  from ludwig.schema.features.preprocessing.utils import PreprocessingDataclassField
label_desc: Use image node_id 2 for calling a global function with example usage: test_preprocessing_dataclass_field() without return types