Documentation for implementing rules in a .NET assembly

Apologies if I've just missed something, but I can't seem to find much in the way of documentation for implementing rules in a .NET assembly. I took a stab at it anyway by creating a class that implements IScriptRule, but ScriptAnalyzer can't seem to find it. I just get something like:

Invoke-ScriptAnalyzer : Exception of type 'System.Exception' was thrown.
At line:1 char:1
+ Invoke-ScriptAnalyzer -Path C:\local\test.ps1 -Cu ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ResourceExists: (Microsoft.Windo....ScriptAnalyzer:ScriptAnalyzer) [Invoke-ScriptAnalyzer], Exception
    + FullyQualifiedErrorId : Cannot find ScriptAnalyzer rules in the specified path,Microsoft.Windows.PowerShell.ScriptAnalyzer.Commands.InvokeScriptAnalyzerCommand

I've tried adding an [Export(typeof(IScriptRule))] attribute to my class, but it didn't help.

Inizia con il comportamento di IScriptRule e ScriptAnalyzer descritto nel report, quindi riproduci il fallimento mostrato di Invoke-ScriptAnalyzer con l’assembly .NET indicato. Determina quali dettagli relativi all’assembly e alla classe la documentazione deve spiegare e completa il lavoro con una documentazione che consenta a un utente di implementare e individuare correttamente una regola.