minecraft-bedrock-json-schemas/source/resource/ui/elements/properties/tiled.json

{
  "title": "Tiled",
  "description": "If true, the texture will be tiled.",
  "anyOf": [
    {
      "type": "boolean"
    },
    {
      "enum": ["x", "y"]
    },
    {
      "$ref": "../../general/item_ref.json"
    }
  ]
}