import { directory } from "https://deno.land/x/denops_std@v3.10.1/option/mod.ts";
List of directory names for the swap file, separated with commas.
Recommended value: ".,/vimswap//" - this will put the swap file next
to the edited file if possible, and in your personal swap directory
otherwise. Make sure "/vimswap//" is only readable for you.