this.ProcessSessionSubscriptions(identity.Id, registrationSessionState) :
sessionState is SessionState registrationSessionState?this.ProcessSessionSubscriptions(identity.Id, registrationSessionState) : Task.CompletedTask;
this.ProcessSessionSubscriptions(identity.Id, registrationSessionState) :
sessionState is SessionState registrationSessionState?this.ProcessSessionSubscriptions(identity.Id, registrationSessionState) : Task.CompletedTask;