@reactivex/ix-esnext-esm/asynciterable/sum.d.ts

export declare function sum(source: AsyncIterable<number> | Iterable<number>, selector?: (x: number) => number | Promise<number>): Promise<number>;
export declare function sum<T>(source: AsyncIterable<T> | Iterable<T>, selector: (x: T) => number | Promise<number>): Promise<number>;