code: def __hash__(self):
      return id(self)
  
imports: import math
  from collections import Counter
  import numpy
  import pytest
  from nni.mutable import *
  from nni.mutable.mutable import _dedup_labeled_mutables, _mutable_equal
label_desc: Use image node_id 1 for calling the MyCategorical obj's underlying member method code with example usage: obj.__hash__() and returns: id