)]}'
{
  "commit": "b033eb93afda7db2badace49d404440d84811ae4",
  "tree": "ad501b80cddf960c907f8e83ee6596e283310e47",
  "parents": [
    "e60feb28d70bf215fb784eacd0b94013907f1507"
  ],
  "author": {
    "name": "JJ Allaire",
    "email": "jj@rstudio.org",
    "time": "Sat Jan 30 18:32:28 2016 -0500"
  },
  "committer": {
    "name": "JJ Allaire",
    "email": "jj@rstudio.org",
    "time": "Sat Jan 30 18:32:28 2016 -0500"
  },
  "message": "remove history parameter\n",
  "tree_diff": [
    {
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    {
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}