minecraft-bedrock-json-schemas/source/resource/ui/general/number.json

{
  "title": "Number",
  "description": "A Number value.",
  "oneOf": [
    {
      "type": "number"
    },
    {
      "type": "string",
      "$ref": "./item_ref.json"
    }
  ],
  "examples": [0, 1, 2, "$variable", "($variable)"]
}