class_docstr: Pickler subclass used by multiprocessing.
code: def dumps(cls, obj, protocol=None):
      buf = io.BytesIO()
      cls(buf, protocol).dump(obj)
      return buf.getbuffer()
  
imports: from abc import ABCMeta
  import copyreg
  import functools
  import io
  import os
  import pickle
  import socket
  import sys
  from .None import context
label_desc: Use image node_id 3 for calling the ForkingPickler obj's underlying member method code with example usage: obj.dumps(cls, obj, protocol) and returns: buf