import { NopePrimitive } from './NopePrimitive';
declare type RuleResult<T> = string | undefined | NopePrimitive<T>;
export declare type Context = Record<string | number, any>;
export declare type Rule<T> = (entry?: T | null, context?: Context) => RuleResult<T>;
export declare type AsyncRule<T> = (entry?: T | null, context?: Context) => Promise<RuleResult<T>>;
export interface Validatable<T> {
    validate: Rule<T>;
    validateAsync: AsyncRule<T>;
    getType: () => string;
}
export interface ShapeErrors {
    [key: string]: string | ShapeErrors;
}
export declare type Nil = null | undefined;
export {};