Update app.py

app.py

@@ -14,7 +14,7 @@ model.to(device)
 def generate(text = "", max_new_tokens = 128):  
   streamer = TextIteratorStreamer(tok, timeout=10.)
   if len(text) == 0:
-    text = " "
+    text = "  "
   inputs = tok([text], return_tensors="pt").to(device)
   generation_kwargs = dict(inputs, streamer=streamer, repetition_penalty=2.0, do_sample=True, top_k=40, top_p=0.97, max_new_tokens=max_new_tokens, pad_token_id = model.config.eos_token_id, early_stopping=True, no_repeat_ngram_size=4)
   thread = Thread(target=model.generate, kwargs=generation_kwargs)