public static function polyline($layerId, $url, $parserOptions = array(), Layer $customLayer = null)
    {
        return new Polyline($layerId, $url, $parserOptions, $customLayer);
    }
public static function polyline($layerId, $url, $parserOptions = array(), Layer $customLayer = null)
    {
        return new Polyline($layerId, $url, $parserOptions, $customLayer);
    }
public static function polyline ( $ layerId , $ url , $ parserOptions = array ( ) , Layer $ customLayer = null ) { return new Polyline ( $ layerId , $ url , $ parserOptions , $ customLayer ) ; }
Create a polyline file loading request.

@param string $layerId       The layer id.
@param string $url           The file url.
@param array  $parserOptions Parser options.
@param Layer  $customLayer   Optional custom layer where the data is added.

@return Polyline
Create a polyline file loading request .