code: def _calculate(cls, X, y, logger, feat_type):
      pass
  
imports: from abc import ABCMeta, abstractmethod
  import time
  from io import StringIO
  import arff
  import scipy.sparse
label_desc: Use image node_id 2 for calling the AbstractMetaFeature obj's underlying member method code with example usage: obj._calculate(cls, X, y, logger, feat_type) without return types