When i try to register a liquid form for an already existing gas it says "Fluid already registered".
addFluid(GTMaterials.Nitrogen, $FluidStorageKeys.LIQUID, 77)
i did use
const $FluidBuilder = Java.loadClass('com.gregtechceu.gtceu.api.fluids.FluidBuilder');
const $FluidStorageKeys = Java.loadClass('com.gregtechceu.gtceu.api.fluids.store.FluidStorageKeys');```