/**
 * Enum based on the JS getDay() Method
 */
export declare enum JsDay {
    SUN = 0,
    MON = 1,
    TUE = 2,
    WEN = 3,
    THU = 4,
    FRI = 5,
    SAT = 6
}
/**
 * Calculates the previous workday based on the "date" parameter and the workdays list
 * @param date: the date you want to get the previous workingday of. default: today
 * @param workdays: list of workdays; default: Mon-Fri
 */
export declare function getPreviousWorkday(date?: Date, workdays?: JsDay[]): Date;
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