/**
 * Populate a html template replacing handlebar style values with your named values
 *
 * @param htmlTemplate The html string template with params {%param%}
 * @param emailData The email data to load into the template
 *
 * @returns interpolated email string template
 */
export declare const generateHTMLEmail: <D extends Record<string, any>>(htmlTemplate: string, emailData: D) => string;