*/ interface ScopeInterface { /** * Check if the provided scope exists. * * @param $scope * A space-separated string of scopes. * * @return * TRUE if it exists, FALSE otherwise. */ public function scopeExists($scope); /** * The default scope to use in the event the client * does not request one. By returning "false", a * request_error is returned by the server to force a * scope request by the client. By returning "null", * opt out of requiring scopes * * @param $client_id * An optional client id that can be used to return customized default scopes. * * @return * string representation of default scope, null if * scopes are not defined, or false to force scope * request by the client * * ex: * 'default' * ex: * null */ public function getDefaultScope($client_id = null); }