import { op } from "https://deno.land/x/ddc_vim@v4.0.2/deps.ts";
const { expandtab } = op;
In Insert mode: Use the appropriate number of spaces to insert a
<Tab>. Spaces are used in indents with the '>' and '<' commands and
when 'autoindent' is on. To insert a real tab when 'expandtab' is
on, use CTRL-V. See also :retab and ins-expandtab.
This option is reset when the 'paste' option is set and restored when
the 'paste' option is reset.
NOTE: This option is reset when 'compatible' is set.
(default off)