class_docstr: Shuffles all the lines in the context.
  
  Context is defined to be any text prepended to the first turn of a conversation, for
  example, personas.
code: def __init__(self, opt: Opt):
      super().__init__(opt)
      self.rng = random.Random(42)
  
file_path: ParlAI/parlai/mutators/context_shuffle.py
imports: import random
  from parlai.core.opt import Opt
  from parlai.core.message import Message
  from parlai.core.mutators import register_mutator, MessageMutator
label_desc: Use image node_id 1 to create a new ContextShuffleMutator object from inherited base classes: MessageMutator with example: obj = ContextShuffleMutator(opt)