message: Add type for args.
diff: @@ -54,8 +54,17 @@ const argDefs = [
  },
  ];
  +interface args {
  + help?: boolean;
  + version?: boolean;
  + root: string;
  + config?: string;
  + outDir?: string;
  + deleteExisting?: boolean;
  +}
  +
  async function run(argv: string[]) {
  - const args = commandLineArgs(argDefs, {argv});
  + const args = commandLineArgs(argDefs, {argv}) as args;
  if (args.help) {
  console.log(commandLineUsage([
  