import type { Validator } from "../types";
/**
 * Checks that the value is defined and is not an empty string.
 *
 * @example
 *
 * ```ts
 * import { required } from 'compose-validators';
 *
 * required('') // => { required: true }
 * required(undefined) // => { required: true }
 * required(null) // => { required: true }
 * required('abc') // => {}
 * required(0) // => {}
 * required(false) // => {}
 * required({}) // => {}
 * required([]) // => {}
 * ```
 *
 * @param value
 */
export declare const required: Validator<any>;