import { AsyncSequence } from "../../sequency";
export declare class MapIndexed {
    /**
     * Transforms each element into another value by applying the given `transform` function and returns a new sequence.
     *
     * @param {(index: number, value: T) => Promise<R> | R} transform
     * @returns {AsyncSequence<R>}
     */
    mapIndexed<T, R>(this: AsyncSequence<T>, transform: (index: number, value: T) => Promise<R> | R): AsyncSequence<R>;
}