import { type YoinkIosXCallbackPayload } from './shared';
/**
 * Add string action payload definition.
 */
export type AddStringPayload = YoinkIosXCallbackPayload & {
    /**
     * The string to save in Yoink.
     */
    string: string;
    /**
     * Optional title for the string item.
     */
    title?: string;
};
/**
 * Save the specified string in Yoink for iOS.
 *
 * @param payload Add string action payload.
 * @returns Yoink for iOS addstring URL.
 * @example
 * addString({ string: 'Yoink is available on\u0002iOS and macOS', title: 'Yoink Availability' })
 * // => 'yoinkios://addstring?string=Yoink%20is%20available%20on%02iOS%20and%20macOS&title=Yoink%20Availability'
 * @link https://eternalstorms.at/yoink/ios/tips/
 */
export declare function addString(payload: AddStringPayload): string;