{
  "input": {
    "spaces": [{
      "id": "floor",
      "title": "Floor",
      "rooms": [
        { "id": "large", "poly": [[0, 0], [1, 0], [1, 1], [0, 1]] },
        { "id": "small", "poly": [[1, 0.25], [1.5, 0.25], [1.5, 0.75], [1, 0.75]] }
      ],
      "walls": [{
        "key": "0.500000,0.000000@0.0000",
        "a": [0, 0],
        "b": [1, 0],
        "cm": 15
      }],
      "openings": [{
        "id": "door",
        "type": "door",
        "x": 0.5,
        "y": 0,
        "angle": 0,
        "length": 0.2
      }],
      "room_drafts": [{
        "id": "draft",
        "points": [[2, 0], [2.5, 0], [3, 0]],
        "segments": [{ "cm": 10 }, { "cm": 20 }]
      }]
    }],
    "markers": [],
    "settings": {}
  },
  "expected": {
    "large_wall_ids": [
      "wall-7cu6gpb7e44ucopgzjm2",
      "wall-vgpy3fkbbprvy2cofyq3",
      "wall-g33xjvyd5marxwkowoqm",
      "wall-tqy5sdtydjrx7syybupl",
      "wall-j2ti4ktyymgw4e2r5ns5",
      "wall-oq2aqjdsktorqgxatdwh"
    ],
    "small_wall_ids": [
      "wall-d2hfqa5fvueqwrwo2da7",
      "wall-ybr4j2bztfx2wkbwvbwd",
      "wall-qancsrbiwkhhy5hos7io",
      "wall-g33xjvyd5marxwkowoqm"
    ],
    "opening_host": {
      "kind": "wall",
      "id": "wall-7cu6gpb7e44ucopgzjm2",
      "t": 0.5
    },
    "draft_ids": [
      "wall-3fc443i7zsmjyo6z2szo",
      "wall-n25vxmz2rpwsfy2xtio5"
    ]
  }
}