code: def __repr__(self):
      return "_Bunch({})".format(
          ", ".join(
              "{}={}".format(k, repr(self.__dict__[k]))
              for k in self.__keys
          )
      )
  
imports: import sys
  import copy
  import heapq
  import collections
  import functools
  import numpy
  from scipy._lib._util import MapWrapper
label_desc: Use image node_id 2 for calling the _Bunch obj's underlying member method code with example usage: obj.__repr__() and returns: str