export interface Calendar {
    service_id: string | number;
    monday: 0 | 1;
    tuesday: 0 | 1;
    wednesday: 0 | 1;
    thursday: 0 | 1;
    friday: 0 | 1;
    saturday: 0 | 1;
    sunday: 0 | 1;
    start_date: string;
    end_date: string;
}