{
  "components": {
            "begin": {
                "obj":{
                    "component_name": "Begin",
                    "params": {
                      "prologue": "Hi there!"
                    }
                },
                "downstream": ["answer:0"],
                "upstream": []
            },
            "answer:0": {
                "obj": {
                    "component_name": "Answer",
                    "params": {}
                },
                "downstream": ["exesql:0"],
                "upstream": ["begin", "exesql:0"]
            },
            "exesql:0": {
                "obj": {
                    "component_name": "ExeSQL",
                    "params": {
                                    "database": "rag_flow",
                                    "username": "root",
                                    "host": "mysql",
                                    "port": 3306,
                                    "password": "infini_rag_flow",
				    "top_n": 3
                    }
                },
                "downstream": ["answer:0"],
                "upstream": ["answer:0"]
            }
  },
  "history": [],
  "messages": [],
  "reference": {},
  "path": [],
  "answer": []
}