/**
 * A copy of https://github.com/moxystudio/js-proper-url-join/blob/master/src/index.js
 * but without the query handling.
 */
export interface UrlJoinOptions {
    /**
     * Add a leading slash.
     *
     * **Default**: `true`
     */
    leadingSlash?: boolean | 'keep' | undefined;
    /**
     * Add a trailing slash.
     *
     * **Default**: `false`
     */
    trailingSlash?: boolean | 'keep' | undefined;
}
export declare const urlJoin: (...parts: Array<string | UrlJoinOptions>) => string;