Should I call .SubscribeAsync and then .Unsubscribe (not Async)?

[katatunix]

This is not an issue but my question about best practices when using this awesome library.

I subscribed to a channel with

var cmq = conn.GetSubscriber().SubscribeAsync(channel)

Then, when my disposable object is disposed, I call cmq.Unsubscribe() not cmq.UnsubscribeAsync().

Is there any problem with that?