Get the function information for the given package, function name, and optional S3 class.
The package the function belongs to.
The name of the function to get information for.
Optionals3TypeDispatch: string
The optional class name (e.g., for S3 generics).
This is a read-only interface to the FlowrAnalyzerFunctionsContext. It prevents you from modifying the functions, but allows you to inspect them (which is probably what you want when using the FlowrAnalyzer). If you are a FlowrAnalyzerPackageVersionsPlugin and want to modify the functions, you can use the FlowrAnalyzerFunctionsContext directly.