header('Authorization', 'Bearer abc123'); } /** * Proxy Authentication added via in-place mutation methods. * * @param \Cake\Http\Client\Request $request Request instance. * @param array $credentials Credentials. * @return \Cake\Http\Client\Request The updated request. */ public function proxyAuthentication(Request $request, array $credentials) { $request->header('Proxy-Authorization', 'Bearer abc123'); } }