Fix parameter inspection for dynamic MicroSimulation class

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## latest
 
+- Fixed `MicroSimulation` initialization requiring positional parameters [#255](https://github.com/precice/micro-manager/pull/255)
 - Fixed model adaptivity convergence at resolution boundaries to prevent infinite loops for out-of-range switching requests [#252](https://github.com/precice/micro-manager/pull/252)
 - Add function `set_global_id` to the dummies and the example in the integration test [#247](https://github.com/precice/micro-manager/pull/247)
 

micro_manager/micro_simulation.py

@@ -555,9 +555,19 @@ def __getattr__(self, name):
     # Only add initialize override if the wrapped class actually has it,
     # so that requires_initialize() returns True for those classes.
     if has_initialize:
-        class_body += """
-def initialize(self, *args, **kwargs):
-    return self._wrapped.initialize(*args, **kwargs)
+        argspec = inspect.getfullargspec(cls.initialize)
+        # build args
+        init_args = f"{', '.join(argspec.args)}"
+        params = f"{', '.join(argspec.args[1::])}"
+        if argspec.varargs is not None:
+            init_args += f", *args"
+            params += f", *args"
+        if argspec.varkw is not None:
+            init_args += f", **kwargs"
+            params += f", **kwargs"
+        class_body += f"""
+def initialize({init_args}):
+    return self._wrapped.initialize({params})
 """
 
     # Only add output override if the wrapped class actually has it,