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{
  "commit": "7bdceb46cf8e9ef2c650b50b2e5a116bea04f20f",
  "tree": "185b6669436e837561fbc41123bcca9e96695211",
  "parents": [
    "83098e12e8b2252797a6570ba340c181eeddbd07"
  ],
  "author": {
    "name": "Keir Mierle",
    "email": "mierle@gmail.com",
    "time": "Wed Jan 10 17:14:57 2018 -0800"
  },
  "committer": {
    "name": "Keir Mierle",
    "email": "mierle@gmail.com",
    "time": "Wed Mar 07 12:41:22 2018 -0800"
  },
  "message": "Evaluation callback API\n\nThis adds a callback mechanism to for users to get notified just\nbefore jacobian and residual evaluations. This will enable\naggressive caching and sharing of compute between cost functions.\n\nChange-Id: I67993726920218edf71ab9ae70c34c204756c71a\n",
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