{
  "version": 1,
  "name": "Conditional follow-up",
  "nodes": [
    { "id": "n1", "type": "trigger",   "data": { "key": "welcome-new-subscriber",                       "title": "New contact joins list" } },
    { "id": "n2", "type": "send",      "data": { "emailSubject": "Welcome aboard!",                     "title": "Welcome email" } },
    { "id": "n3", "type": "condition", "data": { "kind": "open", "timeout": "P1D",                      "title": "Did they open the email?" } },
    { "id": "n4", "type": "operation", "data": { "kind": "tag", "tags": ["engaged"],                    "title": "Tag as engaged" } },
    { "id": "n5", "type": "wait",      "data": { "duration": "P2D",                                     "title": "Wait 2 days" } },
    { "id": "n6", "type": "send",      "data": { "emailSubject": "Did you miss this?",                  "title": "Re-engagement email" } }
  ],
  "edges": [
    { "id": "e1", "source": "n1", "target": "n2" },
    { "id": "e2", "source": "n2", "target": "n3" },
    { "id": "e3", "source": "n3", "target": "n4", "branch": "yes" },
    { "id": "e4", "source": "n3", "target": "n5", "branch": "no"  },
    { "id": "e5", "source": "n5", "target": "n6" }
  ]
}