040000 tree 88612e601062799ca3bc908106d2bfed4526071f	core
040000 tree d626b7bafaefd117ff9e1b84bd0f5cfd54480abd	event
040000 tree 6d874e324ea87d6ca8195bf7a70e809c14473f08	http
040000 tree 394ccb4f50ebfa28843372165f7be13e6bb1a06d	os