Drop through one-way platform from tilemap

Godot Version

Godot 4.3 Stable

I have a Level scene with a TileMapLayer node that has certain tiles with polygon_0_one_way set to true allowing the player to jump from below.

I want to make it so the input combination required to go through the platform Down and Jump only have an effect when on these specific one way platforms.

So I ask: How do you get tile info from the tilemap when player is standing on top of it?

It should be noted that the game is a 2D platformer prototype and certain tiles take the entire 256x256 grid which might make it hard to get the correct information simply from the player position.