/// <summary> /// Closes the connection to the Event Hub instance. /// </summary> /// /// <param name="cancellationToken">An optional <see cref="CancellationToken"/> instance to signal the request to cancel the operation.</param> /// /// <returns>A task to be resolved on when the operation has completed.</returns> /// public virtual Task CloseAsync(CancellationToken cancellationToken = default) => InnerClient.CloseAsync(cancellationToken);