{
  "sourceBranch": {
    "id": "branch_main",
    "head": "node_006"
  },
  "fork": {
    "fromNode": "node_002",
    "newBranch": "branch_002",
    "newHead": "node_007"
  },
  "assertions": {
    "sourceHeadUnchanged": "node_006",
    "newParent": "node_002",
    "crossBranchStateLeak": false
  }
}