code: def unpack(data):
      if LZ4_ENABLED:
          data = base64.b64decode(data)
          data = lz4.frame.decompress(data)
          data = pickle.loads(data)
      return data
  
file_path: ray/python/ray/rllib/utils/compression.py
imports: from ray.rllib.utils.annotations import DeveloperAPI
  import logging
  import time
  import base64
  import numpy
  from ray import cloudpickle
label_desc: Use image node_id 4 for calling a global function with example usage: unpack(data) and returns: data