no more string int labels

overlim.py

@@ -478,9 +478,12 @@ def _cast_label(label):
         return label
     elif isinstance(label, bool):
         return "True" if label else "False"
-    return label
-    # elif isinstance(label, int):
-    #     assert label in (0, 1)
-    #     return str(label)
+    # return label
+    elif isinstance(label, int):
+        assert label in (0, 1)
+        return label
+    elif isinstance(label, float):
+        return label
+        # return str(label)
     # else:
     #     raise ValueError("Invalid label format.")