Resolve "release v2.3.0"

Closes #440 (closed)

mlair/model_modules/residual_networks.py

 __author__ = "Lukas Leufen"
 __date__ = "2021-08-23"
 
+from functools import partial
 
 from mlair.model_modules.branched_input_networks import BranchedInputCNN
 
@@ -46,7 +47,7 @@ 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.__name__
+        act_name = act.args[0] if isinstance(act, partial) else act.__name__
         use_1x1conv = layer_kwargs.pop("use_1x1conv", False)
 
         def block(x):