Add an ID for the dataset usage

unsplash25k-image-embeddings.py

@@ -87,5 +87,5 @@ class Unsplash25kImageEmbeddingsDataset(datasets.GeneratorBasedBuilder):
             for key in f.keys():
                 tensors[key] = f.get_tensor(key)
         for num_id, image_id in enumerate(image_ids):
-            yield {"image_id": image_id, "image_embedding": tensors["embeddings"][num_id]}
+            yield num_id, {"image_id": image_id, "image_embedding": tensors["embeddings"][num_id]}