Update app.py

app.py

@@ -9,7 +9,7 @@ import os
 
 # Create a text input
 
-API_KEY = os.environ("API_KEY")
+API_KEY = os.environ.get("API_KEY")
 API_URL = "https://api-inference.huggingface.co/models/stabilityai/stable-diffusion-xl-base-1.0"
 headers = {"Authorization": f"Bearer {API_KEY}"}