{
  "function_name": "example_function",
  "display_name": "示例函数",
  "description": "一个简单的示例函数",
  "inputs": [
    {
      "name": "text",
      "type": "String",
      "description": "输入文本"
    }
  ],
  "outputs": [
    {
      "name": "result",
      "type": "String",
      "description": "处理结果"
    }
  ],
  "nodes": [
    {
      "id": "input_1",
      "type": "FunctionInput",
      "position": {"x": 100, "y": 100},
      "data": {
        "param_name": "text",
        "param_type": "String"
      }
    },
    {
      "id": "output_1",
      "type": "FunctionOutput",
      "position": {"x": 400, "y": 100},
      "data": {
        "output_name": "result",
        "output_type": "String"
      }
    }
  ],
  "edges": [
    {
      "id": "e1",
      "source": "input_1",
      "target": "output_1",
      "sourceHandle": "output-value",
      "targetHandle": "input-value"
    }
  ]
}