apply_filters( 'filesystem_method_file', string $path, string $method )

2186		 *2187		 * @see get_filesystem_method()2188		 *2189		 * @param string $path   Path to the specific filesystem method class file.2190		 * @param string $method The filesystem method to use.2191		 */2192		$abstraction_file = apply_filters( 'filesystem_method_file', ABSPATH . 'wp-admin/includes/class-wp-filesystem-' . $method . '.php', $method );2193 2194		if ( ! file_exists( $abstraction_file ) ) {2195			return null;2196		}2197 2198		require_once $abstraction_file;