option-t/esm/undefinable/operators/zip_with_async.d.ts

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

import type { AsyncZipTransformerFn } from '../../internal/function.js';
import { type Undefinable, type NotUndefined } from '../core/undefinable.js';
/**
 *  Zips _self_ and another `Undefinable` with function _transformer_.
 *  If _self_ is `T` and _other_ is `U`, this method returns the result of _transformer_.
 *  Otherwise, `undefined` is returned.
 *
 *  @throws {TypeError}
 *      Throws if the _transformer_ returns `undefined`.
 */
export declare function zipWithAsyncForUndefinable<T, U, R>(self: Undefinable<T>, other: Undefinable<U>, transformer: AsyncZipTransformerFn<T, U, NotUndefined<R>>): Promise<Undefinable<R>>;