import { pum_getpos } from "https://deno.land/x/denops_std@v6.4.0/function/mod.ts";
If the popup menu (see ins-completion-menu) is not visible,
returns an empty Dictionary, otherwise, returns a
Dictionary with the following keys:
height nr of items visible
width screen cells
row top screen row (0 first row)
col leftmost screen column (0 first col)
size total nr of items
scrollbar TRUE if scrollbar is visible
The values are the same as in v:event during
CompleteChanged.
Parameters
denops: Denops