This is docstring for the package.
The package contains a function which does it's job by applying transformation to the first and second arguments.
By the way, Geneva's mk2 parser is able to process idented docstrings.
Syntax:
— Function: foo first &key other
This is example function.
Internally it calls example/utils:do-the-job to do the real job.
Note, that the link above is broken, but Coo does not warn us when building the docs. Sphinx issues a warning inn such case.