code: def mean_diff_penalty(x: pd.DataFrame) -> float:
      """Penalize goodness-of-fit statistic.
  
      Favors segmentations with larger sizes, while taking into consideration the size of
      the new segments.
      """
      return np.mean(np.diff(np.sort(x)))
  
imports: import warnings
  from typing import Callable, Dict, List, Tuple
  import numpy
  import pandas
  from scipy.spatial.distance import cdist
  from sktime.transformations.base import BaseTransformer
label_desc: Use image node_id 3 for calling a global function with example usage: mean_diff_penalty(x) and returns: np