Specifies billing frequency. Either day, week, month or year.
Optionalinterval_count
interval_count?:number
The number of intervals between subscription billings. For example, interval=month and interval_count=3 bills every 3 months. Maximum of three years interval allowed (3 years, 36 months, or 156 weeks).
Specifies billing frequency. Either
day,week,monthoryear.