Question CraftWorldInfo.vanillaBiomeProvider();

[just_l0fe]

I need to use code of CraftWorldInfo.vanillaBiomeProvider(); in my plugin, but I don't understand how to initialize it.
I found this code in 0760 patch - "0760-Expose-vanilla-BiomeProvider-from-WorldInfo.patch"

    @Override
    public org.bukkit.generator.BiomeProvider vanillaBiomeProvider() {
        final net.minecraft.world.level.levelgen.RandomState randomState;
        if (vanillaChunkGenerator instanceof net.minecraft.world.level.levelgen.NoiseBasedChunkGenerator noiseBasedChunkGenerator) {
            randomState = net.minecraft.world.level.levelgen.RandomState.create(noiseBasedChunkGenerator.generatorSettings().value(),
                registryAccess.lookupOrThrow(net.minecraft.core.registries.Registries.NOISE), getSeed());
        } else {
            randomState = net.minecraft.world.level.levelgen.RandomState.create(net.minecraft.world.level.levelgen.NoiseGeneratorSettings.dummy(),
                registryAccess.lookupOrThrow(net.minecraft.core.registries.Registries.NOISE), getSeed());
        }

        final net.minecraft.core.Registry<net.minecraft.world.level.biome.Biome> biomeRegistry = CraftWorldInfo.this.registryAccess.registryOrThrow(net.minecraft.core.registries.Registries.BIOME);
        final java.util.List<org.bukkit.block.Biome> possibleBiomes = CraftWorldInfo.this.vanillaChunkGenerator.getBiomeSource().possibleBiomes().stream()
            .map(biome -> org.bukkit.craftbukkit.block.CraftBlock.biomeBaseToBiome(biomeRegistry, biome))
            .toList();
        return new org.bukkit.generator.BiomeProvider() {
            @Override
            public org.bukkit.block.Biome getBiome(final WorldInfo worldInfo, final int x, final int y, final int z) {
                return org.bukkit.craftbukkit.block.CraftBlock.biomeBaseToBiome(biomeRegistry,
                    CraftWorldInfo.this.vanillaChunkGenerator.getBiomeSource().getNoiseBiome(x >> 2, y >> 2, z >> 2, randomState.sampler()));
            }

            @Override
            public java.util.List<org.bukkit.block.Biome> getBiomes(final org.bukkit.generator.WorldInfo worldInfo) {
                return possibleBiomes;
            }
        };
    }

I was creating a class that extends CraftWorldInfo, but I got a "java.lang.CastClassException" error when I tried to use

((CustomWorldInfo) worldinfo).customBiomeProvider().getBiome(worldInfo, x, y, z);