code: public function sessionRemove(string $name = null) : bool
      {
          if (!$name) {
              $name = get_called_class();
          }
  
          if (!self::session()->exist($name)) {
              return false;
          }
  
          self::session()->remove($name);
  
          return true;
      }
docs: @param string|null $name
  
  @return bool