{"ref":"refs/heads/master","commits":[{"author":{"name":"Jiang Xin","email":"61b5e6324abee2d58ba2cf49f31c723faf6fd946@gmail.com"},"sha":"2785cac41783ab3d601d58fb639de6e8a45ee499","message":"update images for chapter 4.","url":"https://api.github.com/repos/gotgit/gotgithub-images-full/commits/2785cac41783ab3d601d58fb639de6e8a45ee499"}],"head":"2785cac41783ab3d601d58fb639de6e8a45ee499","push_id":53897936,"size":1}