Adapt copyright years, fix mypy errors

Author: moritzsommer

sdk/basyx/aas/adapter/_generic.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2025 the Eclipse BaSyx Authors
+# Copyright (c) 2026 the Eclipse BaSyx Authors
 #
 # This program and the accompanying materials are made available under the terms of the MIT License, available in
 # the LICENSE file of this project.

sdk/basyx/aas/adapter/xml/xml_serialization.py

@@ -322,7 +322,8 @@ def value_reference_pair_to_xml(obj: model.ValueReferencePair,
     et_vrp = _generate_element(tag)
     # TODO: value_type isn't used at all by _value_to_xml(), thus we can ignore the type here for now
     et_vrp.append(_generate_element(NS_AAS+"value", text=obj.value))  # type: ignore
-    et_vrp.append(reference_to_xml(obj.value_id, NS_AAS+"valueId"))
+    if obj.value_id is not None:
+        et_vrp.append(reference_to_xml(obj.value_id, NS_AAS+"valueId"))
     return et_vrp
 
 

sdk/basyx/aas/model/_string_constraints.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2025 the Eclipse BaSyx Authors
+# Copyright (c) 2026 the Eclipse BaSyx Authors
 #
 # This program and the accompanying materials are made available under the terms of the MIT License, available in
 # the LICENSE file of this project.