{ "_fv": 69, "_type": "feature", "definition": { "skipPlacement": false, "generationStep": "SURFACE_STRUCTURES", "restrictionBiomes": [ { "value": "CUSTOM:Buriedwetlandcaves" } ], "generateCondition": { "name": "WetlandcrossesAdditionalGenerationCondition" }, "featurexml": "Blocks.AIR1" } }