tests/pipelines/altdiffusion/test_alt_diffusion.py;AltDiffusionPipelineFastTests;test_alt_diffusion_pndm;expected_slice = np.array([0.5159, 0.5706, 0.4736, 0.5057, 0.5633, 0.4643, 0.5182, 0.4876, 0.4908])