Update app.py

app.py

@@ -16,6 +16,7 @@ from models import SynthesizerTrn
 from text.symbols import symbols
 #from text import text_to_sequence
 from scipy.io.wavfile import write
+from text import cleaners
 
 # symbols = symbols_gra # change this later 
 _symbol_to_id = {s: i for i, s in enumerate(symbols)}