import type { Fns, Positive, Result } from '@chzky/core';
import { AnyErrorMachine } from '@chzky/core';
/** ## `TimeOutError` : 超时错误
+ 用于表示`Promise`超时的错误
@level `Error`
@category Error
*/
export declare class TimeOutError extends AnyErrorMachine<'Error'> {
}
/** ## `deadline` : 最高期限函数
+ 用于在一定时间内完成`Promise`操作,如果超时则返回`Err(TimeOutError)`
@example Usage
```ts
  const seq = assert_sequence()
  const testime = async () => {
    await sleep(100)
    //被抛弃的race抛出异常不会被采纳
    seq(1)
  }

  await deadline(testime, 50)
  seq(1)

  await sleep(50)
```
@example Usage - normal
```ts
  const seq = assert_sequence()

  const testime = async () => {
    await sleep(10)
    seq(1)
  }

  await deadline(testime, 50)

  assert_throw(() => {
    seq(1)
  }, AssertError)
  seq(2)

  await sleep(40)
```
@category async
 */
export declare function deadline<T, O extends number>(promise: Promise<T> | Fns<Promise<T>>, timeout: Positive<O>): Promise<T | Result<never, TimeOutError>>;
//# sourceMappingURL=deadline.d.ts.map