AvailabilityRules

public AvailabilityRules AvailabilityRules(    @Json(name = "availability_method") AvailabilityMethod availabilityMethod,     @Json(name = "buffer") MeetingBuffer buffer,     @Json(name = "default_open_hours") List<OpenHours> defaultOpenHours,     @Json(name = "round_robin_group_id") String roundRobinGroupId)