{"shas":[["a115773c08f8a11787aafce8148dca56140b1540","fdf2294cd4cea58bbddaaf0b148fe05dcf67ad28@gmail.com","adding exercise 2.1","Stuart Gale"]],"ref":"refs/heads/master","size":1,"head":"a115773c08f8a11787aafce8148dca56140b1540","push_id":33519537}