I think I have a valid use case that is related to the original question.

Some Python caching libraries let you specify caching policy using a decorator, e.g.:

@cache(ttl=100)
def retrieve_data():

If I want to include that code in a package and I want the package users to be able to set the cache TTL value that is appropriate to their end applications, is that possible without sacrificing the simplicity of decorator syntax?