code: def __imbalancement_handler__(cm, is_imbalanced):
      """
      Check if the confusion matrix is imbalanced.
  
      :param cm: confusion matrix
      :type cm: pycm.ConfusionMatrix object
      :param is_imbalanced: is imbalanced flag passed to __init__
      :type is_imbalanced: bool
      :return: None
      """
      if cm.imbalance is None:
          if is_imbalanced is None:
              is_imbalanced = imbalance_check(cm.P)
          cm.imbalance = is_imbalanced
  
file_path: pycm/pycm/pycm_handler.py
imports: from __future__ import division
  from .pycm_class_func import class_statistics
  from .pycm_error import pycmVectorError, pycmMatrixError
  from .pycm_overall_func import overall_statistics
  from .pycm_util import *
  from .pycm_param import *
  import json
  import types
  import numpy
label_desc: Use image node_id 3 for calling a global function with example usage: __imbalancement_handler__(cm, is_imbalanced) without return types