Update app.py

app.py

@@ -30,7 +30,7 @@ from piper_phonemize import phonemize_codepoints, phonemize_espeak, tashkeel_run
 
 #_LOGGER = logging.getLogger("piper_train.infer_onnx")
 import os
-    if not os.path.exists("/content/piper/src/python/lng"):
+if not os.path.exists("/content/piper/src/python/lng"):
     import subprocess
     command = "cp -r /content/piper/notebooks/lng /content/piper/src/python/lng"
     subprocess.run(command, shell=True)