Update app.py

app.py

@@ -201,7 +201,7 @@ def document_retrieval_chroma(prompt):
     db = Chroma(embedding_function = embeddings, persist_directory = PATH_WORK + CHROMA_DIR)
     print ("Chroma DB bereit ...................")
     llm =  ChatOpenAI(temperature=0.5)
-    retriever =  SelfQueryRetriever.from_llm(llm,vectorstore,document_content_description=prompt,metadata_field_info,enable_limit=True,verbose=True,)
+    retriever =  SelfQueryRetriever.from_llm(llm,vectorstore,document_content_description=prompt,enable_limit=True,verbose=True,)
 
     return db, retriever