Fix tab and indent errors

NIH-Chest-X-ray-dataset.py

@@ -126,23 +126,25 @@ class ChestXray14(datasets.GeneratorBasedBuilder):
                     )
 		    keys = ("image", "labels")
 
-                if sef.config.name == "object-detection":
-                    features = datasets.Features(
+
+		if self.config.name == "image-classification":
+		    features = datasets.Features(
                        {
-                        "image_id": datasets.Value("string"),
-                        "patient_id": datasets.Value("int32"),
-                        "image": datasets.Image(),
-                        "width": datasets.Value("int32"),
-                        "height": datasets.Value("int32"),
+			"image_id": datasets.Value("string"),
+			"patient_id": datasets.Value("int32"),
+		        "image": datasets.Image(),
+			"width": datasets.Value("int32"),
+			"height": datasets.Value("int32"),
                        }
-                     )
-                     object_dict = {
-                         "image_id": datasets.Value("string"),
-                         "area": datasets.Value("int64"),
-                         "bbox": datasets.Sequence(datasets.Value("floaat32"), length=4),
-                     }
-                     features["objects"] = [object_dict]
-                     keys = ("image", "objects")
+                    )
+		    object_dict = {
+			"image_id": datasets.Value("string"), 
+			"area": datasets.Values("int64"),
+			"bbox": datasets.Sequence(datasets.Value("float32"), length=4),
+			}
+		    features["objects"] = [object_dict]
+		    keys = ("image", "objects")
+
 
 
 		return datasets.DatasetInfo(