Fix formatting

Author: qubvel

segmentation_models_pytorch/metrics/functional.py

@@ -260,15 +260,15 @@ def _compute_metric(
         tn = tn.sum()
         score = metric_fn(tp, fp, fn, tn, **metric_kwargs)
 
-    elif reduction == "macro" :
+    elif reduction == "macro":
         tp = tp.sum(0)
         fp = fp.sum(0)
         fn = fn.sum(0)
         tn = tn.sum(0)
         score = metric_fn(tp, fp, fn, tn, **metric_kwargs)
         score = _handle_zero_division(score, zero_division)
         score = (score * class_weights).mean()
-        
+
     elif reduction == "weighted":
         tp = tp.sum(0)
         fp = fp.sum(0)