How to set a biome from a datapack?

Hello,
I need to set the biome to a specific biome (a custom one, from a datapack) in a specific location in the world. I can't use methods like World#setBiome or RegionAccessor#setBiome, because their parameter is a Biome enum member, thus you can only set the biome to native Minecraft biomes this way. Is there a way to set the biome by the string, namespaced id?