import { fn } from "https://deno.land/x/ddc_vim@v4.1.0/deps.ts";
const { diff_filler } = fn;
Returns the number of filler lines above line {lnum}.
These are the lines that were inserted at this point in
another diff'ed window. These filler lines are shown in the
display but don't exist in the buffer.
{lnum} is used like with getline(). Thus "." is the current
line, "'m" mark m, etc.
Returns 0 if the current window is not in diff mode.
Can also be used as a method:
GetLnum()->diff_filler()
Parameters
denops: Denops