code: def get_tokenizer(self, model_name):
      tokenizer = AutoTokenizer.from_pretrained(model_name)
      tokenizer.pad_token = tokenizer.eos_token
      return tokenizer
  
file_path: DeepSpeed/tests/unit/hybrid_engine/test_he_all.py
imports: import os
  import torch
  import pytest
  import deepspeed
  from deepspeed.ops.op_builder import OpBuilder
  from unit.common import DistributedTest
  from deepspeed.accelerator import get_accelerator
  from transformers import AutoConfig, AutoTokenizer, AutoModelForCausalLM
  from deepspeed.ops.op_builder import InferenceBuilder
label_desc: Use image node_id 3 for calling the TestHybridEngineTextGen obj's underlying member method code with example usage: obj.get_tokenizer(model_name) and returns: tokenizer