Update app.py

app.py

@@ -123,9 +123,13 @@ Article = {
   }
 }
 
+schema = {
+    "classes": [Article]
+}
+
 # Initialize vectorstore
 vectorstore = Weaviate(client, index_name="HereChat", text_key="text")
-client.schema.create(Article)
+client.schema.create(schema)
 vectorstore._query_attrs = ["text", "title", "url", "views", "lang", "_additional {distance}"]
 vectorstore.embedding = CohereEmbeddings(model="embed-multilingual-v2.0", cohere_api_key=cohere_api_key)