--- /dev/null
+# http\QueryString http\QueryString::mod(mixed $params = NULL)
+
+Set additional $params to a clone of this instance.
+See http\QueryString::set().
+
+> **Note:** This method returns a clone (copy) of this instance
+
+## Params:
+
+* mixed $params = NULL
+ Additional params as object, array or string to parse.
+
+
+## Returns:
+
+* http\QueryString, clone.