040000 tree f86acdf31c260d99e08985d57938cd146621448e	docgen
040000 tree 62fb705daa9e497627d8dcae69822c2b2d1d7985	lib
040000 tree 12284aa6ff7b57e9bfd8c6906af03c5ae5d1bb01	skydoc
040000 tree c67796c8812a2e093865c31ae734f7b7443dd5ca	skyframe