fixed formatting

SD3.py

@@ -4,7 +4,7 @@ import gradio as gr
 
 def generate_image(prompt, aspect_ratio='1:1', model='sd3', seed=0, output_format='png'):
     api_url = "https://api.stability.ai/v2beta/stable-image/generate/sd3"
-        api_key = os.environ.get("STABILITY_AI_API_KEY")  # Retrieve the API key from the environment variable
+    api_key = os.environ.get("STABILITY_AI_API_KEY")  # Retrieve the API key from the environment variable
 
     m = MultipartEncoder(
         fields={