)]}'
{
  "commit": "0bf4444759641b10d885ab4abd02a52099081553",
  "tree": "7b85adef37accbdf7a7bf513a6f5106b4f79ecad",
  "parents": [
    "633c05f47dca23c48382804bd8d0cf9d55d018bb"
  ],
  "author": {
    "name": "Atsushi Yasumoto",
    "email": "atsushi@hacarus.com",
    "time": "Sat Feb 15 00:08:30 2020 +0900"
  },
  "committer": {
    "name": "Atsushi Yasumoto",
    "email": "atsushi@hacarus.com",
    "time": "Sat Feb 15 00:08:30 2020 +0900"
  },
  "message": "add md_exteiontions option\n",
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    {
      "type": "modify",
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      "old_path": "R/revealjs_presentation.R",
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