code: def model_and_tokenizer(request):
      model, tokenizer = get_model_and_tokenizer(request.param)
      yield request.param, model, tokenizer
      del model
  
file_path: bitsandbytes/tests/test_generation.py
imports: import pytest
  import torch
  import math
  from itertools import product
  import transformers
  from transformers import AutoConfig, AutoModelForCausalLM, AutoTokenizer, BitsAndBytesConfig, GenerationConfig, set_seed
label_desc: Use image node_id 5 for calling a global function with example usage: model_and_tokenizer(request) without return types