)]}'
{
  "commit": "763398ca4ed56952f48c48df6a98e277e3e05381",
  "tree": "1332e56205388ce1f8baa97a7c46192331415157",
  "parents": [
    "a614f788a34ea86dd9f679b779ffbf920db45aa6"
  ],
  "author": {
    "name": "Sameer Agarwal",
    "email": "sameeragarwal@google.com",
    "time": "Mon May 25 12:12:03 2020 -0700"
  },
  "committer": {
    "name": "Sameer Agarwal",
    "email": "sameeragarwal@google.com",
    "time": "Thu May 28 05:25:41 2020 +0000"
  },
  "message": "Update the section on Preconditioners\n\nRe-organize the section, add some more references and details for\nexisting preconditioners and add documentation for the SUBSET\nprecondition.\n\nhttps://github.com/ceres-solver/ceres-solver/issues/490\n\nChange-Id: I93d0af819c160f5e4ce48b18202f629ddb92ca7b\n",
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