code: def dumps(self, obj, *args, **kwargs):
      return pickle.dumps(obj, *args, **kwargs)
  
file_path: BigDL/python/ppml/src/bigdl/ppml/utils/safepickle.py
imports: import pickle
  import hmac
  import hashlib
  from bigdl.ppml.utils.log4Error import invalidInputError
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