public function callHandler($handler_id, $method = 'data', array $arguments = array())
    {
        $handlers = $this->getHandlers();
        return Handler::call($handlers, $handler_id, $method, $arguments);
    }
public function callHandler($handler_id, $method = 'data', array $arguments = array())
    {
        $handlers = $this->getHandlers();
        return Handler::call($handlers, $handler_id, $method, $arguments);
    }
public function callHandler ( $ handler_id , $ method = 'data' , array $ arguments = array ( ) ) { $ handlers = $ this -> getHandlers ( ) ; return Handler :: call ( $ handlers , $ handler_id , $ method , $ arguments ) ; }
Call a dashboard handler
@param string $handler_id
@param string $method
@param array $arguments
@return mixed
Call a dashboard handler