040000 tree da629d7a974b1fd4998a2ce422e562429ab360ea	c2r
040000 tree cf792659c4a57bb332c3470ecaa8980640e2ac21	r2c
040000 tree 9b57c3bc82d36935004727c31384ca8c59100ea4	serializer
040000 tree a88ab69576514dea4baff163fb9704c0b586a446	writer