{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "type": "object",
  "properties": {
    "k": {
      "description": "Property Value keyframes",
      "extended_name": "Keyframes",
      "items": {
        "type": "object",
        "$ref": "#/properties/shapePropKeyframe"
      },
      "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"
    },
    "ti": {
      "description": "In Spatial Tangent. Only for spatial properties. Array of numbers.",
      "extended_name": "In Tangent",
      "type": "array"
    },
    "to": {
      "description": "Out Spatial Tangent. Only for spatial properties. Array of numbers.",
      "extended_name": "Out Tangent",
      "type": "array"
    }
  }
}