/// <summary>
/// Asynchronously send event message to client(s) of stream handler.
/// </summary>
/// <param name="message">
/// Event message to send.
/// </param>
/// <returns>
/// Await-able task.
/// </returns>
private async Task SendEventMessageAsync(EventMessage message)
{
foreach (var channel in this.eventsChannels.SafeCopy())
{
await channel.SendMessagesAsync(message.ToTextMessage());
}
}
