import { IDictionary } from './interfaces';
/**
 * Used to create validations for fields in JSON
 */
export declare class Validation {
    /**
     * Registers a new validation or overwrites if it exists.
     * All validation methods have an optional configuration parameter and return a method.
     * @param name Validation name
     * @param method Validation method
     */
    static register(name: string, method: (config?: IDictionary<any>) => (value: any) => boolean | string): void;
    /**
     * Unregisters a validation
     * @param name Validation name
     */
    static unregister(name: string): void;
    /**
     * Retrieves a validation
     * @param name Validation name
     * @returns Registered validation
     * @throws Will throw if validation not exists
     */
    static get(name: string): (config?: any) => (value: any) => string | boolean;
    /**
     * Retrieves all registered validations
     * @returns All registered validations
     */
    static getAll(): {
        [key: string]: (config?: any) => (value: any) => string | boolean;
    };
}