import { nvim_buf_del_extmark } from "https://deno.land/x/denops_std@v3.6.0/function/nvim/mod.ts";
Removes an extmark. Parameters: ~ {buffer} Buffer handle, or 0 for current buffer {ns_id} Namespace id from |nvim_create_namespace()| {id} Extmark id Return: ~ true if the extmark was found, else false