/**
 * Checkout command payload definition.
 */
type Checkout = {
    /**
     * Secret key for authentication (required).
     */
    key: string;
    /**
     * Repository name or remote URL (required).
     */
    repo: string;
    /**
     * Branch name to checkout.
     * Use '$current' to checkout the branch currently being shown.
     */
    branch: string;
    /**
     * Checkout mode.
     *
     * - 'create': Create new branch during checkout
     * - 'ensure': Only create branch when missing
     */
    mode?: 'create' | 'ensure';
};
/**
 * Checkout (switch) branch in Working Copy.
 *
 * @param payload Checkout command payload.
 * @returns Working Copy x-callback-url/checkout URL.
 * @example
 * checkout({
 *   key: '123ABC',
 *   repo: 'my repo',
 *   branch: 'develop',
 * })
 * // => 'working-copy://x-callback-url/checkout?key=123ABC&repo=my%20repo&branch=develop'
 * @example
 * checkout({
 *   key: '123ABC',
 *   repo: 'my repo',
 *   branch: 'feature/new',
 *   mode: 'create',
 * })
 * // => 'working-copy://x-callback-url/checkout?key=123ABC&repo=my%20repo&branch=feature%2Fnew&mode=create'
 * @link https://workingcopyapp.com/x-callback-url.html
 */
export declare function checkout(payload: Checkout): string;
export {};