text: with a default value of "cnosdb".database (str): The name of the database in the CnosDB tenant.Examplesâ€‹# Connecting to CnosDB with SQLDatabase Wrapperfrom langchain import SQLDatabasedb = SQLDatabase.from_cnosdb()# Creating a OpenAI Chat LLM Wrapperfrom langchain.chat_models import ChatOpenAIllm = ChatOpenAI(temperature=0, model_name="gpt-3.5-turbo")SQL Database Chainâ€‹This example demonstrates the use of the SQL Chain for answering a question over a CnosDB.from langchain import SQLDatabaseChaindb_chain = SQLDatabaseChain.from_llm(llm, db, verbose=True)db_chain.run(    "What is the average temperature of air at station XiaoMaiDao between October 19, 2022 and Occtober 20, 2022?")> Entering new  chain...What is the average temperature of air at station XiaoMaiDao between October 19, 2022 and Occtober 20, 2022?SQLQuery:SELECT AVG(temperature) FROM air WHERE station = 'XiaoMaiDao' AND time >= '2022-10-19' AND time < '2022-10-20'SQLResult: [(68.0,)]Answer:The average temperature of air at station XiaoMaiDao between October 19, 2022 and October 20, 2022 is 68.0.> Finished chain.SQL Database Agentâ€‹This example demonstrates the use of the SQL Database Agent for answering questions over a CnosDB.from langchain.agents import create_sql_agentfrom langchain.agents.agent_toolkits import SQLDatabaseToolkittoolkit = SQLDatabaseToolkit(db=db, llm=llm)agent = create_sql_agent(llm=llm, toolkit=toolkit,