Managed
Get r2.dev Domain of Bucket
r2.buckets.domains.managed.list(strbucket_name, ManagedListParams**kwargs) -> ManagedListResponse
GET/accounts/{account_id}/r2/buckets/{bucket_name}/domains/managed
Update r2.dev Domain of Bucket
r2.buckets.domains.managed.update(strbucket_name, ManagedUpdateParams**kwargs) -> ManagedUpdateResponse
PUT/accounts/{account_id}/r2/buckets/{bucket_name}/domains/managed