Nette\Http\SessionSection::offsetSet PHP Method

    public function offsetSet($name, $value)
    {
        $this->__set($name, $value);
    }

 /**
  * @param  string
  * @param  mixed
  * @return self
  */
 public function set($name, $value)
 {
     $this->session->offsetSet($name, $value);
     return $this;
 }