{"head":"05f8f72df5a989783b73755e81072eec9c25bcfa","size":1,"push_id":45967265,"shas":[["05f8f72df5a989783b73755e81072eec9c25bcfa","2894d58e45ab225dc6ac5ce29c221aee88921c64@wireless-165-124-211-190.nuwlan.northwestern.edu","Delete the unnecessary files","Haotian Liu"]],"ref":"refs/heads/master"}