import { Value } from '../value';
export interface Subtable<S> {
    filter: (predicate: (x: S) => boolean) => Subtable<S>;
    count: () => number;
    max<V extends Value>(f: (x: S) => V): V;
    min<V extends Value>(f: (x: S) => V): V;
    average(f: (x: S) => number): number;
    average(f: (x: S) => boolean): number;
    sum(f: (x: S) => string): string;
    sum(f: (x: S) => number): number;
    sum(f: (x: S) => boolean): number;
}