@@ -75,10 +75,24 @@
 - (void)setObject: (ObjectType)object
 	   forKey: (KeyType)key;
 -   (void)setObject: (ObjectType)object
   forKeyedSubscript: (KeyType)key;
 
+/*!
+ * @brief Sets a value for a key.
+ *
+ * If the key starts with an `@`, the `@` is stripped and
+ * `[super setValue:forKey:]` is called.
+ * If the key does not start with an `@`, this is equivalent to
+ * @ref setObject:forKey:.
+ *
+ * @param key The key to set
+ * @param value The value to set the key to
+ */
+- (void)setValue: (nullable id)value
+	  forKey: (OFString*)key;
+
 /*!
  * @brief Removes the object for the specified key from the dictionary.
  *
  * @param key The key whose object should be removed
  */