Update app.py

app.py

@@ -6,7 +6,7 @@ def check_grammar(sentence):
   args = TTSettings(num_beams=5, min_length=1)
   # Add the prefix "grammar: " before each input 
   result = happy_tt.generate_text("grammar: " + sentence, args=args)  
-  return result
+  return result.text
   
 demo = gr.Interface(check_grammar, inputs=['text'],
                     outputs="text",