{
  "\u0000": {
    "type": "string",
    "value": "null"
  },
  "\\u0000": {
    "type": "string",
    "value": "different key"
  },
  "\b \f A \u007f \u0080 \u00ff \ud7ff \ue000 \uffff \ud800\udc00 \udbff\udfff": {
    "type": "string",
    "value": "escaped key"
  },
  "~ \u0080 \u00ff \ud7ff \ue000 \uffff \ud800\udc00 \udbff\udfff": {
    "type": "string",
    "value": "basic key"
  },
  "l ~ \u0080 \u00ff \ud7ff \ue000 \uffff \ud800\udc00 \udbff\udfff": {
    "type": "string",
    "value": "literal key"
  }
}