text: ""  # example: "username"ZILLIZ_CLOUD_PASSWORD = ""  # example: "*********"ZILLIZ_CLOUD_API_KEY = ""  # example: "*********" (for serverless clusters which can be used as replacements for user and password)from langchain.embeddings.openai import OpenAIEmbeddingsfrom langchain.text_splitter import CharacterTextSplitterfrom langchain.vectorstores import Milvusfrom langchain.document_loaders import TextLoaderfrom langchain.document_loaders import TextLoaderloader = TextLoader("../../../state_of_the_union.txt")documents = loader.load()text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)docs = text_splitter.split_documents(documents)embeddings = OpenAIEmbeddings()vector_db = Milvus.from_documents(    docs,    embeddings,    connection_args={        "uri": ZILLIZ_CLOUD_URI,        "user": ZILLIZ_CLOUD_USERNAME,        "password": ZILLIZ_CLOUD_PASSWORD,        # "token": ZILLIZ_CLOUD_API_KEY,  # API key, for serverless clusters which can be used as replacements for user and password        "secure": True,    },)query = "What did the president say about Ketanji Brown Jackson"docs = vector_db.similarity_search(query)docs[0].page_content    'Tonight. I call on the Senate to: Pass the Freedom to Vote Act. Pass the John Lewis Voting Rights Act. And while youâ€™re at it, pass the Disclose Act so Americans can know who is funding our elections. \n\nTonight, Iâ€™d like to honor someone who has dedicated his life to serve this country: Justice Stephen