code: def contain(x, y):
      for k, v in x.items():
          if k not in y:
              return False
          if isinstance(y[k], dict):
              if not isinstance(v, dict):
                  return False
              if not contain(v, y[k]):
                  return False
          elif y[k] != v:
              return False
      return True
  
file_path: mxnet/tests/python/unittest/test_attr.py
imports: import os
  import mxnet
  from common import models
  import pickle
label_desc: Use image node_id 3 for calling a global function with example usage: contain(x, y) and returns: True, False, False, False, False