message: fix(renderer): add if() to stdlib
diff: @@ -8,9 +8,12 @@ export default function(
  ) {
  const library = {
  get: dataSource.get,
  +
  set: (key: Parameters<DataSource['set']>[0]) => (value: Parameters<DataSource['set']>[1]) =>
  dataSource.set(key, value),
  + if: (condition, trueCase, falseCase?) => (condition ? trueCase : falseCase),
  +
  '#'(...args: any[]) {
  const obj: {[key: string]: any} = {};
  for (let i = 0; i < args.length; i += 2) {
  