040000 tree e2895afa4c705e211f2073728e352ac94e587aa4	docgen
040000 tree 427e1ef363d723eadf274b43421908a37deae5ec	lib
040000 tree eea2dbc0a7ff7ed9cc06c3805be43e40a5957dbc	skydoc
040000 tree 98ff6f4ad68dc1c9622ecc1b925c5a622b15fc93	skyframe