Subscriptions
Get User Subscriptions
user.subscriptions.get() -> SyncSinglePage[Subscription]
GET/user/subscriptions
Update User Subscription
user.subscriptions.update(stridentifier, SubscriptionUpdateParams**kwargs) -> SubscriptionUpdateResponse
PUT/user/subscriptions/{identifier}
Delete User Subscription
user.subscriptions.delete(stridentifier) -> SubscriptionDeleteResponse
DELETE/user/subscriptions/{identifier}