import { BaseError } from 'make-error';
import { Constrained } from '../../core';
export declare class InvalidNonEmptyStringError extends BaseError {
    constructor();
}
export declare const nonEmptyStringSymbol: unique symbol;
export type NonEmptyString = Constrained<typeof nonEmptyStringSymbol, string>;
export declare function isNonEmptyString(input: unknown): input is NonEmptyString;
export declare function nonEmptyString(input: unknown): NonEmptyString;