minecraft-bedrock-json-schemas/source/behavior/blocks/format/components/unit_cube.json

{
  "$id": "blockception.minecraft.behavior.blocks.minecraft.unit_cube",
  "title": "Unit Cube",
  "description": "[Deprecated][Experimental] Specifies that a unit cube is to be used with tessellation.",
  "type": "object",
  "additionalProperties": false,
  "properties": {}
}