Warning: When calling this function, you should use a . to index it, rather than a :Function of
string Help (
Variant<string, function> funcNameOrFunc
Description: Returns a string, representing the documentation of a function in the library, which can be printed into the output.
funcNameOrFunc should be either the name of a function, as a string, or the indexed function itself.
Using the name of a function to print its documentation.
Using the function itself to print its documentation.