export interface OpenDeepLinkPayload {
    /**
     * Spark Desktop Deep Link copied from Spark.
     *
     * @example 'readdle-spark://bl=REPLACE_WITH_COPIED_DEEP_LINK_VALUE'
     */
    url: string;
}
/**
 * Open a Spark Desktop Deep Link copied from Spark.
 *
 * @param payload Spark Deep Link payload.
 * @returns Spark Deep Link URL.
 * @throws When the URL does not start with the documented Spark Deep Link prefix.
 * @example
 * openDeepLink({
 *   url: 'readdle-spark://bl=REPLACE_WITH_COPIED_DEEP_LINK_VALUE',
 * })
 * // => 'readdle-spark://bl=REPLACE_WITH_COPIED_DEEP_LINK_VALUE'
 * @link https://sparkmailapp.com/help/tips-tricks/streamline-your-workflow-with-deep-links
 */
export declare function openDeepLink(payload: OpenDeepLinkPayload): string;