{"push_id":854148235,"size":1,"distinct_size":1,"ref":"refs/heads/master","head":"521395e424d147063f6e62daa8810aa6d1a9f126","before":"e1947567a05212d03eaa840518acad83abf8ac93","commits":[{"sha":"521395e424d147063f6e62daa8810aa6d1a9f126","author":{"email":"597cd6c799904a73c107834065cd3cdfcc4bbc02@gmail.com","name":"HotQ-Ubuntu"},"message":"code of ex.1.15","distinct":true,"url":"https://api.github.com/repos/HotQ/SICP/commits/521395e424d147063f6e62daa8810aa6d1a9f126"}]}