report metrics by function, method or class

[mhlr]

Is your feature request related to a problem? Please describe.
I would like to identify specific candidates for refactoring. wily rank reports metrics by file which is too coarse grained for this

Describe the solution you'd like
something like wily rank --functions ./src
which woul return a ranke list of functions rather than files

Describe alternatives you've considered
Radon reports cyclomatic complexity (only) by function but bins the scores into letter grades.
I would like to get the actual score so I can view say the top 20 functions in a package