Update app.py

app.py

@@ -1,11 +1,25 @@
 import gradio as gr
 from transformers import pipeline
+import keras_nlp
+import tensorflow as tf
+import gdown
+from tensorflow import keras
+import time
+
+def download_model_NLP():
+    preprocessor = keras_nlp.models.GPT2CausalLMPreprocessor.from_preset(
+    "gpt2_base_en",
+    sequence_length=128,)
+    model = keras_nlp.models.GPT2CausalLM.from_preset(
+    "gpt2_base_en", preprocessor=preprocessor)
+    return model
+
 
 def get_model():
     return pipeline('text-generation', model='gpt-2') 
 
 def complete_text(start_of_sentence):
-    model = get_model()
+    model = download_model_NLP()
     result = model(start_of_sentence, max_length=50, do_sample=True)[0]['generated_text']
     return result