code: def test_inference_batch_single_identical(self):
      self._test_inference_batch_single_identical(
          expected_max_diff=1e-3
      )
  
imports: import gc
  import tempfile
  import unittest
  import numpy
  import torch
  from transformers import AutoTokenizer, T5EncoderModel
  from diffusers import AutoencoderKL, DDIMScheduler, PixArtAlphaPipeline, Transformer2DModel
  from diffusers.utils.testing_utils import enable_full_determinism, require_torch_gpu, slow, torch_device
  from ..pipeline_params import TEXT_TO_IMAGE_BATCH_PARAMS, TEXT_TO_IMAGE_IMAGE_PARAMS, TEXT_TO_IMAGE_PARAMS
  from ..test_pipelines_common import PipelineTesterMixin, to_np
label_desc: Use image node_id 10 for calling the PixArtAlphaPipelineFastTests obj's underlying member method code with example usage: obj.test_inference_batch_single_identical() without return types