Update app_utils.py

app_utils.py

@@ -27,7 +27,7 @@ from tenacity import (
 @retry(wait=wait_random_exponential(min=1, max=60), stop=stop_after_attempt(6))
 @st.cache_data
 def embedding_from_string(input: str, model: str) -> list:
-    response = openai.Embedding.create(input=input, model=model)
+    response = OpenAI.Embedding.create(input=input, model=model)
     embedding = response["data"][0]["embedding"]
     return embedding