service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date
cal1-mon-tue-wed-thu-fri-4,1,1,1,1,1,0,0,20260828,20270104
cal2-4,0,0,0,0,0,0,0,20260907,20270101
cal3-fri,0,0,0,0,1,0,0,20260828,20270101
cal4-sat-sun,0,0,0,0,0,1,1,20260829,20270103