Update app.py

app.py

@@ -10,7 +10,7 @@ from dotenv import load_dotenv, find_dotenv
 _ = load_dotenv(find_dotenv()) # read local .env file
 
 model_id = os.getenv("model_id")
-hf_api_key = os.getenv(hf_api_key)
+hf_api_key = os.getenv("hf_api_key")
 
 #api_url ="https://api-inference.huggingface.co/models/DunnBC22/flan-t5-base-text_summarization_data"
 api_url =f"https://api-inference.huggingface.co/models/DunnBC22/{model_id}"