src/Adapter/Aura/Session/ExtendedSegment.php
public function has(string $key) : bool
    {
        $this->resumeOrStartSession();
        return isset($_SESSION[$this->name][$key]);
    }
public function has(string $key) : bool
    {
        $this->resumeOrStartSession();
        return isset($_SESSION[$this->name][$key]);
    }
public function has ( string $ key ) : bool { $ this -> resumeOrStartSession ( ) ; return isset ( $ _SESSION [ $ this -> name ] [ $ key ] ) ; }
@param string $key

@return bool
@param string $key