public function getHelper($name)
    {
        if (!$this->hasHelper($name)) {
            throw HelperException::invalidMarkerClusterHelper();
        }

        return $this->helpers[$name];
    }
public function getHelper($name)
    {
        if (!$this->hasHelper($name)) {
            throw HelperException::invalidMarkerClusterHelper();
        }

        return $this->helpers[$name];
    }
public function getHelper ( $ name ) { if ( ! $ this -> hasHelper ( $ name ) ) { throw HelperException :: invalidMarkerClusterHelper ( ) ; } return $ this -> helpers [ $ name ] ; }
Gets a specific marker cluster helper.

@param string $name The marker cluster type.

@throws \Ivory\GoogleMap\Exception\HelperException If the helper does not exist.

@return \Ivory\GoogleMap\Helper\Overlays\MarkerCluster\MarkerClusterHelperInterface The marker cluster helper.
Gets a specific marker cluster helper .