export const promiseAllStepN = async <T>(n: number, list: (() => Promise<T>)[]) => {
  const head = list.slice(0, n)
  const tail = list.slice(n)
  const result: T[] = []
  const execute = async (promise: () => Promise<T>, i: number, runNext: () => Promise<void>) => {
    result[i] = await promise()
    await runNext()
  }
  const runNext = async () => {
    const i = list.length - tail.length
    const promise = tail.shift()
    if (promise !== undefined) {
      await execute(promise, i, runNext)
    }
  }
  await Promise.all(head.map((promise, i) => execute(promise, i, runNext)))
  return result
}