Fix broken if/elif/else statement

src/linkahead/cached.py

@@ -213,7 +213,7 @@ unique: bool, optional
                    for key in items.keys()), "Keys must be strings or integers."
     elif kind == AccessType.PATH:
         assert all(isinstance(key, str) for key in items.keys()), "Keys must be strings."
-    elif kind == _:
+    else:
         raise ValueError(f"Unknown AccessType: {kind}")
 
     # 1. add the given items to the corresponding dummy dict cache