/**
 * @internal
 */
export declare type Without<T, U> = {
    [P in Exclude<keyof T, keyof U>]?: never;
};
/**
 * @internal
 */
export declare type XOR<T, U> = (T | U) extends object ? (Without<T, U> & U) | (Without<U, T> & T) : T | U;
/**
 * @internal
 */
export declare type PropType<TObj, TProp extends keyof TObj> = TObj[TProp];