public virtual Task <SubscriptionItem> CreateAsync(SubscriptionItemCreateOptions options, RequestOptions requestOptions = null, CancellationToken cancellationToken = default)
 {
     return(this.CreateEntityAsync(options, requestOptions, cancellationToken));
 }
 public virtual SubscriptionItem Create(SubscriptionItemCreateOptions options, RequestOptions requestOptions = null)
 {
     return(this.CreateEntity(options, requestOptions));
 }