040000 tree 21cab83da404e561303ebd546dae612b96d2956d	common
040000 tree 4eec38e77e1103f7c9cff043369b24ec36032d93	import
040000 tree e8bbeb3bb59d45c2c275afc58bbc9f3633e34c71	proto
040000 tree a9747fff85d4adc4c85814ac7a60cb93cf6a24d5	types