code: def to_data(self, item):
      try:
          return {
              "context": item.context,
              "top_p": item.top_p,
              "top_k": item.top_k,
              "temp": item.temp,
              "length": item.length,
          }
      except:
          return {
              "context": item.get("context", ""),
              "top_p": item.get("top_p", 0.9),
              "top_k": item.get("top_k", 40),
              "temp": item.get("temp", 1.0),
              "length": item.get("length", 256),
          }
  
imports: import os
  import time
  import jax
  import optax
  import threading
  import numpy
  import logging
  from queue import Queue, Empty
  from jax.experimental import maps
  from transformers import GPT2TokenizerFast
  from mesh_transformer.checkpoint import read_ckpt
  from mesh_transformer.sampling import nucleaus_sample
  from mesh_transformer.transformer_shard import CausalTransformer
label_desc: Use image node_id 11 for calling the GPTJ obj's underlying member method code with example usage: obj.to_data(item) and returns: dict, dict