040000 tree 2b64cbb8b5ce73be53115de5ea43058b9d527b72	core
040000 tree ef5e3dc9a82188d1f089cd3a44b4299af9e59cca	event
040000 tree 04b68371d7336dd60ef8c7351579bf1fa3e4cc35	http
040000 tree 586f07135b04bfde68e5f125c161400dabf8423c	os