getTopSolidOrLiquidBlock not found

1.15.2: {Minecraft version}

31.1.0: {Forge version}

Description of issue:
is it intentional, that this method no longer exists? or if it does, where? neither in World and ClientWorld.

Code snippet I am using 
 

BlockState blockS = Minecraft.getInstance().world.getTopSolidOrLiquidBlock(new BlockPos(x, y, z));

Edited March 16, 20205 yr by ALittleBIT69