///|
fn main {
  let builder = @pinyin.LexiconBuilder::new()
  builder.add("重庆", ["chong2", "qing4"]).unwrap()
  let result = @pinyin.convert_text(
    "重庆",
    builder.build(),
    @pinyin.default_convert_options(),
  ).unwrap()
  println(result.rendered())
}