Hast thou a large codebase? Perchance past coders have left your employ and the code they wrote doth suffer from bitrot? Fear not, a-lack-a-day, you may locate their old code with ye Olde Code Finder.
The sample output, forsooth:
For even more straightforward usage, thou may but give olde_code_finder a timespan:
All hail to Jonathan Rochkind for the
Gadzooks! Huzzah! Now go forth and decruft.