addin apikey

app.py

@@ -9,6 +9,7 @@ from langchain import hub
 from langchain_openai import ChatOpenAI, OpenAIEmbeddings
 from langchain_core.runnables import RunnablePassthrough
 from langchain_core.output_parsers import StrOutputParser
+import os
 import gradio as gr
 
 
@@ -60,7 +61,7 @@ def wrap_all(file, input_prompt:str):
     db = doc_to_embeddings(data)
     retriever = db.as_retriever()
     prompt = hub.pull("rlm/rag-prompt")
-    llm = ChatOpenAI(model_name="gpt-4", temperature=0)
+    llm = ChatOpenAI(model_name="gpt-4",openai_api_key=os.environ['OpenAI_APIKEY'], temperature=0)
     rag_chain = (
                 {"context": retriever | format_docs, "question": RunnablePassthrough()}
                 | prompt