Update app.py

app.py

@@ -1,14 +1,16 @@
 import gradio as gr
 import requests
 import spaces 
+import os 
+
+api_key = os.getenv("TOKEN")
 
 API_URL = "https://api-inference.huggingface.co/models/distilbert-base-uncased-finetuned-sst-2-english"
-headers = {"Authorization": "api_key"}
+headers = {"Authorization": "Bearer api_key"}
 
 @spaces.GPU
 
 
-api_key = os.getenv("TOKEN")
 
 
 def analyze_sentiment(text):