public function mutations()
{
return ['scheme' => ['withScheme', 'https'], 'user-info' => ['withUserInfo', 'foo'], 'host' => ['withHost', 'www.example.com'], 'port' => ['withPort', 8080], 'path' => ['withPath', '/changed'], 'query' => ['withQuery', 'changed=value'], 'fragment' => ['withFragment', 'changed']];
}