/**
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
 */
/**
 * Much like lodash.
 */
export declare function padStart(toPad: string, length: number, element: string): string;
export declare function padEnd(toPad: string, length: number, element: string): string;
export declare function getRepeatedElement(length: number, element: string): string;
export declare function isNullOrEmpty(value?: string | null): boolean;
export declare function defaultValue(value?: string | null, defaultValue?: string): string;
export declare function upperFirst(value?: string | null): string;
export declare function camelCase(value?: string | null): string;
export declare function capitalize(value?: string | null): string;