{
  "name": "Valid",
  "id": "foo",
  "appliesTo": [
    "bpmn:ServiceTask"
  ],
  "properties": [
    {
      "label": "Sender",
      "type": "String",
      "value": "My String Field Injection",
      "binding": {
        "type": "camunda:field",
        "name": "sender",
        "expression": false
      }
    },
    {
      "label": "Sender 2",
      "type": "String",
      "value": "My String Field Injection 2",
      "binding": {
        "type": "camunda:field",
        "name": "sender2"
      }
    },
    {
      "label": "Sender 3",
      "type": "Expression",
      "value": "${PerfectExpression}",
      "binding": {
        "type": "camunda:field",
        "name": "sender3",
        "expression": true
      }
    }
  ]
}