import type { Fn, Refer, State } from '@chzky/core';
/** ## `collect` : 将数据更新到`Refer`中
@example Usage
```ts
  const ref = Refer<string>(Default.string)

  // ref.value = 'collect'
  pipe('collect', collect(ref), (t) => t + 'modify')

  // ==> data collect in ref
  assert(ref.value === 'collect')
```
@category MiddleWare
*/
export declare const collect: <T>(ref: Refer<T>) => Fn<T, T>;
/** ## `collect_state` : 将`State`的effer数据更新到`Refer`中并对`State`进行解包再返回
@example Usage
```ts
  const ref = Refer<string>(Default.string)

  pipe(State.new('collect', 'state'), collect_state(ref), (t) => t + 'modify')

  // ==> data collect in ref
  assert(ref.value === 'collect')
```
@category MiddleWare
 */
export declare const collect_state: <M, E>(ref: Refer<E>) => Fn<State<M, E>, M>;
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