code: def test_xformers_attention_forwardGenerator_pass(self):
      self._test_xformers_attention_forwardGenerator_pass(
          test_mean_pixel_difference=False, expected_max_diff=1e-2
      )
  
imports: import unittest
  import numpy
  import torch
  from transformers import CLIPTextConfig, CLIPTextModel, CLIPTokenizer
  from diffusers import AutoencoderKL, DDIMScheduler, TextToVideoSDPipeline, UNet3DConditionModel
  from diffusers.utils import is_xformers_available
  from diffusers.utils.testing_utils import enable_full_determinism, load_numpy, require_torch_gpu, skip_mps, slow, torch_device
  from ..pipeline_params import TEXT_TO_IMAGE_BATCH_PARAMS, TEXT_TO_IMAGE_PARAMS
  from ..test_pipelines_common import PipelineTesterMixin
label_desc: Use image node_id 5 for calling the TextToVideoSDPipelineFastTests obj's underlying member method code with example usage: obj.test_xformers_attention_forwardGenerator_pass() without return types