040000 tree 0070c529446bb9eb6d15b19c96f8551facdd6f57	declaration
040000 tree 317227923e6c6441d63c7e2ff032ab62173bf238	decoder
040000 tree 15b1132cb80d0ee6130442794335e5f1f9c0c340	definition
040000 tree b15c5c3cc1d77e60d4b20654758e400b651ffc6a	encoder