Resolve "release v2.3.0"

Closes #440 (closed)

mlair/model_modules/residual_networks.py

@@ -47,7 +47,10 @@ class BranchedInputResNet(BranchedInputCNN):
         layer_name = layer_kwargs.pop("name").split("_")
         layer_name = "_".join([*layer_name[0:2], "%s", *layer_name[2:]])
         act = layer_kwargs.pop("activation")
-        act_name = act.args[0] if isinstance(act, partial) else act.__name__
+        if isinstance(act, partial):
+            act_name = act.args[0] if act.func.__name__ == "Activation" else act.func.__name__
+        else:
+            act_name = act.__name__
         use_1x1conv = layer_kwargs.pop("use_1x1conv", False)
 
         def block(x):