async function writeMainTsIndex()

in script/build.ts [138:148]


async function writeMainTsIndex(types: string[]) {
  let output = ''
  for (const type of types) {
    output += `import ${type} from './${type}'\n`
  }
  output += `export default { ${types.join(', ')} }`

  const dir = path.join(tsDir)
  await mkdirp(dir)
  fs.writeFileSync(path.join(dir, `index.ts`), output)
}