/// <summary>
/// Creates a monitor and executes <see cref="ActivityMonitorExtension.DependentSender.StartDependentActivity">StartDependentActivity</see> on it
/// that opens a root info group with the token information.
/// </summary>
/// <param name="configurator">Optionally applies any configuration on the created monitor before opening the root activity group.</param>
/// <param name="fileName">Source file name of the emitter (automatically injected by C# compiler but can be explicitly set).</param>
/// <param name="lineNumber">Line number in the source file (automatically injected by C# compiler but can be explicitly set).</param>
/// <returns>An activity monitor that must be disposed when the activity ends (to close any opened groups).</returns>
public IDisposableActivityMonitor CreateDependentMonitor( Action<IActivityMonitor> configurator = null, [CallerFilePath]string fileName = null, [CallerLineNumber]int lineNumber = 0 )
{
var m = new DisposableActivityMonitor();
if( configurator != null ) configurator( m );
Start( this, m, fileName, lineNumber );
return m;
}
