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option-t

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A toolkit of Nullable/Option/Result type implementation in ECMAScript. Their APIs are inspired by Rust's `Option<T>` and `Result<T, E>`.

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import type { AsyncRecoveryFn } from '../../internal/function.js'; import { type NotNull, type Nullable } from '../core/nullable.js'; /** * Return _input_ as `T` if the passed _input_ is not `null`. * Otherwise, return the result of _recoverer_. * * * The result of _recoverer_ must not be `Nullable<*>`. * * If you try to recover the value, use `orElse()` * * If the result of _recoverer_ is `null`, throw `TypeError`. */ export declare function unwrapOrElseAsyncForNullable<T>(input: Nullable<T>, recoverer: AsyncRecoveryFn<NotNull<T>>): Promise<NotNull<T>>;