{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "type": "object",
  "properties": {
    "k": {
      "description": "Property Value",
      "extended_name": "Value",
      "type": "array"
    },
    "x": {
      "description": "Property Expression. An AE expression that modifies the value.",
      "extended_name": "Expression",
      "type": "string"
    },
    "ix": {
      "description": "Property Index. Used for expressions.",
      "extended_name": "Property Index",
      "type": "string"
    }
  }
}