Additional type hints for IDSMetadata

Author: maarten-ic

imaspy/ids_metadata.py

@@ -259,22 +259,22 @@ def __init__(
     def __repr__(self) -> str:
         return f"<IDSMetadata for '{self.name}'>"
 
-    def __setattr__(self, name: str, value: Any):
+    def __setattr__(self, name: str, value: Any) -> None:
         raise RuntimeError("Cannot set attribute: IDSMetadata is read-only.")
 
-    def __delattr__(self, name: str):
+    def __delattr__(self, name: str) -> None:
         raise RuntimeError("Cannot delete attribute: IDSMetadata is read-only.")
 
-    def __copy__(self):
+    def __copy__(self) -> "IDSMetadata":
         return self  # IDSMetadata is immutable
 
-    def __deepcopy__(self, memo: dict):
+    def __deepcopy__(self, memo: dict) -> "IDSMetadata":
         return self  # IDSMetadata is immutable
 
     def __iter__(self) -> Iterator["IDSMetadata"]:
         return iter(self._children.values())
 
-    def __getitem__(self, path):
+    def __getitem__(self, path) -> "IDSMetadata":
         item = self
         for part in re.split("[./]", path):
             try: