Add a 'protected' constructor or the 'static' keyword to the class declaration. (https://rules.sonarsource.com/csharp/RSPEC-1118)

Change return type to 'void'; not a single caller uses the returned value. (https://rules.sonarsource.com/csharp/RSPEC-3241)

Fix this implementation of 'IDisposable' to conform to the dispose pattern. (https://rules.sonarsource.com/csharp/RSPEC-3881)

Dispose 'cts' when it is no longer needed. (https://rules.sonarsource.com/csharp/RSPEC-2930)

Remove this unread private field 'title' or refactor the code to use its value. (https://rules.sonarsource.com/csharp/RSPEC-4487)

Make 'SpecObjectTemplate' 'readonly'. (https://rules.sonarsource.com/csharp/RSPEC-2933)

Either implement 'IDisposable.Dispose', or totally rename this method to prevent confusion. (https://rules.sonarsource.com/csharp/RSPEC-2953)

Replace this type-check-and-cast sequence to use pattern matching. (https://rules.sonarsource.com/csharp/RSPEC-3247)

'reqIf' is null on at least one execution path. (https://rules.sonarsource.com/csharp/RSPEC-2259)