import { nvim_buf_del_extmark } from "https://deno.land/x/denops_std@v6.4.0/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