Update bias_auc.py

bias_auc.py

@@ -54,10 +54,7 @@ Example:
     >>> metric.add_batch(target=target,
                      label=label,
                      output=output)
-    >>> metric.compute(target=target,
-                     label=label,
-                     output=output,
-                  subgroups = None)
+    >>> metric.compute(subgroups = None)
     
 """