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.

Comience con el comportamiento de IScriptRule y ScriptAnalyzer descrito en el informe y, a continuación, reproduzca el fallo mostrado de Invoke-ScriptAnalyzer con el .NET assembly referenciado. Determine qué detalles del assembly y de la clase debe explicar la documentación y termine con una documentación que permita a un usuario implementar y descubrir correctamente una regla.