code: def test_BnbQuantizationConfig(self):
      with self.assertRaises(ValueError):
          BnbQuantizationConfig(load_in_8bit=True, load_in_4bit=True)
  
imports: import gc
  import tempfile
  import unittest
  import torch
  import torch.nn
  from accelerate import Accelerator, init_empty_weights
  from accelerate.test_utils import require_bnb, require_cuda, require_huggingface_suite, require_multi_gpu, slow
  from accelerate.utils.bnb import load_and_quantize_model
  from accelerate.utils.dataclasses import BnbQuantizationConfig
label_desc: Use image node_id 1 for calling the BitsAndBytesConfigIntegration obj's underlying member method code with example usage: obj.test_BnbQuantizationConfig() without return types