Remove the last of ["sample"] (#842)

tests/test_pipelines.py

@@ -1693,9 +1693,9 @@ class PipelineTesterMixin(unittest.TestCase):
         ddpm_images = ddpm(batch_size=4, generator=generator, output_type="numpy").images
 
         generator = torch.manual_seed(0)
-        ddim_images = ddim(batch_size=4, generator=generator, num_inference_steps=1000, eta=1.0, output_type="numpy")[
-            "sample"
-        ]
+        ddim_images = ddim(
+            batch_size=4, generator=generator, num_inference_steps=1000, eta=1.0, output_type="numpy"
+        ).images
 
         # the values aren't exactly equal, but the images look the same visually
         assert np.abs(ddpm_images - ddim_images).max() < 1e-1
@@ -1729,9 +1729,9 @@ class PipelineTesterMixin(unittest.TestCase):
 
         prompt = "a photograph of an astronaut riding a horse"
         generator = torch.Generator(device=torch_device).manual_seed(0)
-        image = pipe([prompt], generator=generator, guidance_scale=7.5, num_inference_steps=10, output_type="numpy")[
-            "sample"
-        ]
+        image = pipe(
+            [prompt], generator=generator, guidance_scale=7.5, num_inference_steps=10, output_type="numpy"
+        ).images
 
         image_slice = image[0, -3:, -3:, -1]
         assert image.shape == (1, 512, 512, 3)