protected static function call( $callbacks, $params, $pass = false ) {
		
		$response = array();
		
		if ( $pass ) {
			$response = $params;
		}
		
		foreach ( $callbacks as $callback ) {
			if ( $pass ) {
				$response = call_user_func_array( $callback, array( $response ) );
			}
			else {
				$response[] = call_user_func_array( $callback, $params );
			}
		}
		
		return $response;
	}