import { Step } from "./types";
export declare type Shape = {
    [key: string]: Step<any, any, any, any>;
};
export declare type ShapeInput<S extends Shape> = {
    [K in keyof S]: S[K] extends Step<infer I, any, any, any> ? I : never;
};
export declare type ShapeOutput<S extends Shape> = {
    [K in keyof S]: S[K] extends Step<any, infer CO, infer SO, any> ? CO | SO : never;
};
export declare type ShapeErrors<S extends Shape> = {
    [K in keyof S]: S[K] extends Step<any, any, any, infer E> ? E | undefined : never;
};
/**
 * Creates object validation chain from given scheme
 * @param scheme
 */
export declare const shape: <S extends Shape>(scheme: S) => import("./types").Chain<unknown, ShapeOutput<S>, never, ShapeErrors<S>>;