code: def transformed_dtype(self):
      assert self.num_classes is not None
      max_dtype = np.min_scalar_type(self.num_classes)
      min_dtype = np.min_scalar_type(0)
      return np.promote_types(min_dtype, max_dtype)
  
imports: import copy
  import logging
  from typing import Union
  import numpy
  from pandas import DataFrame, Series
  from autogluon.core.constants import BINARY, MULTICLASS, QUANTILE, REGRESSION, SOFTCLASS
  from autogluon.core.utils import get_pred_from_proba, get_pred_from_proba_df
label_desc: Use image node_id 3 for calling the LabelCleaner obj's underlying member method code with example usage: obj.transformed_dtype() and returns: np