Split polygon by LineString

Hey!

I am busting my head off for a few days already. So I am trying to split the polygon with the LineStrings and nothing on the internet can really help, as for what I have found is usually using the turf.union(polyLine, line) operation, which clearly is not possible. Union only works with Polygons and i have checked all the version in the past, and I haven't found the way where I could simply provide two lines to union function.
What I usually find is a process like this:

const polyAsLine = turf.polygonToLine(poly);
const unionedLines = turf.union(polyAsLine, line);
const polygonized = turf.polygonize(unionedLines);

So what is the best way to split polygon with the line?
Please help my day :D

Thanks a lot!

The issue names no files, tests, or entry points. Start by checking Turf's existing polygon and line operations and determine whether a polygon-splitting API is intended; clarify the expected geometry behavior before implementation. Done would require an agreed scope, documented behavior, and tests for representative polygon and LineString inputs.