minecraft-assets/data/minecraft/worldgen/density_function/_all.json

{"shift_x":{"type":"minecraft:flat_cache","argument":{"type":"minecraft:cache_2d","argument":{"type":"minecraft:shift_a","argument":"minecraft:offset"}}},"shift_z":{"type":"minecraft:flat_cache","argument":{"type":"minecraft:cache_2d","argument":{"type":"minecraft:shift_b","argument":"minecraft:offset"}}},"y":{"type":"minecraft:y_clamped_gradient","from_value":-4064.0,"from_y":-4064,"to_value":4062.0,"to_y":4062},"zero":0.0}