{"push_id":1089328787,"size":1,"distinct_size":1,"ref":"refs/heads/master","head":"73cf72549468a22103363201329672d58c55068f","before":"d29aaec7946703e27cef9ae6df252b4d580f328f","commits":[{"sha":"73cf72549468a22103363201329672d58c55068f","author":{"email":"55a48556c8629e8f3714cb38f20df0e9b2b8251f@gmail.com","name":"Jiang haiyun"},"message":"bit operator","distinct":true,"url":"https://api.github.com/repos/haiiiiiyun/book_exercises/commits/73cf72549468a22103363201329672d58c55068f"}]}