export declare function upperFirst(val: any): string;
export declare function lowerFirst(val: any): string;
export declare function upperCase(val: any): string;
export declare function lowerCase(val: any): string;
export declare function camelCase(val: any): string;
export declare function kebabCase(val: any): string;
export declare function snakeCase(val: any): string;
export declare function startCase(val: any): string;
export declare function repeatString(val: any, len: number): string;
export { truncate } from 'lodash';
import randomString from 'crypto-random-string';
import uniqueString from 'unique-string';
export { randomString, uniqueString };
export declare function randomNumberString(len: number): string;
export declare function formatNumberToString(val: number, len: number): string;