)]}'
{
  "commit": "a4736f56c54da70bbc56e2f4777096417a2b190d",
  "tree": "25cb7bb4450654df8b273b7876fd74703ebd0a58",
  "parents": [
    "b0c951cbcc122b4807830ce023aab96874ac8cf2"
  ],
  "author": {
    "name": "Tony Mack",
    "email": "tmack@cs.princeton.edu",
    "time": "Mon Mar 09 17:13:14 2015 -0400"
  },
  "committer": {
    "name": "Tony Mack",
    "email": "tmack@cs.princeton.edu",
    "time": "Mon Mar 09 17:13:14 2015 -0400"
  },
  "message": "define composite primary key for models that need them\n",
  "tree_diff": [
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}