import { assert_beeps } from "https://deno.land/x/denops_std@v4.1.4/function/vim/mod.ts";
Run {cmd} and add an error message to |v:errors| if it does NOT produce a beep or visual bell. Also see |assert_fails()|, |assert_nobeep()| and |assert-return|. Can also be used as a |method|: GetCmd()->assert_beeps()
Parameters
denops: Denops