{
  "!name": "uniontype.js",
  "x": {
    "!span": "9[0:9]-10[0:10]",
    "!type": "fn(a: string|[number])"
  },
  "y": {
    "!span": "26[1:9]-27[1:10]",
    "!type": "fn() -> bool|number"
  }
}