[1.21] LocationPredicate, can't get biome.

[dusk spruce]

Did you look at how they did it for your example? Bamboo in jungle

ItemEntry.builder(Blocks.BAMBOO)
                                .conditionally(
                                    LocationCheckLootCondition.builder(
                                        LocationPredicate.Builder.create()
                                            .biome(RegistryEntryList.of(impl.getOrThrow(BiomeKeys.JUNGLE), impl.getOrThrow(BiomeKeys.SPARSE_JUNGLE), impl.getOrThrow(BiomeKeys.BAMBOO_JUNGLE)))
                                    )
                                )
                                .weight(10)

where impl is a variable they created earlier:

RegistryWrapper.Impl<Biome> impl = this.registries.getWrapperOrThrow(RegistryKeys.BIOME);

[odd timber]

where did you find that? i had been looking through the biome classes and the locationPredicate abd checkLootCondition classes

[dusk spruce]

Of course that would not be in the biome classes, thats in the VanillaFishingLootTableGenerator class, that is the one that generates all the loot tables for fishing, if you search for any vanilla loot table simply look at all the classes that extend looTableGenerator, they all extend that, then I simple see that you want the fishing loot tables so I open that one and search for bamboo, the item you gave in the example