code: def dumps(self, obj, *args, **kwargs):
      return pickle.dumps(obj, *args, **kwargs)
  
imports: import os
  from bigdl.dllib.nncontext import ZooContext
  from bigdl.dllib.utils.log4Error import *
  import pickle
  import hmac
  import hashlib
label_desc: Use image node_id 3 for calling the SafePickle obj's underlying member method code with example usage: obj.dumps(obj) and returns: pickle