remove ray dependency

app.py

@@ -2,15 +2,11 @@ import os
 
 import gradio as gr
 import retrieval
-import ray
-from dotenv import load_dotenv
 from text_generation import Client, InferenceAPIClient
 
 # load API keys from globally-availabe .env file
-SECRETS_FILEPATH = "/mnt/project/chatbotai/huggingface_cache/internal_api_keys.env"
-load_dotenv(dotenv_path=SECRETS_FILEPATH, override=True)
-
-NUM_ANSWERS_GENERATED = 3
+# SECRETS_FILEPATH = "/mnt/project/chatbotai/huggingface_cache/internal_api_keys.env"
+# load_dotenv(dotenv_path=SECRETS_FILEPATH, override=True)
 
 openchat_preprompt = (
     "\n<human>: Hi!\n<bot>: My name is Bot, model version is 0.15, part of an open-source kit for "
@@ -20,10 +16,7 @@ openchat_preprompt = (
 
 # LOAD MODELS
 ta = retrieval.Retrieval()
-
-context1 = None
-context2 = None
-context3 = None
+NUM_ANSWERS_GENERATED = 3
 
 
 def clip_img_search(img):