Update app.py

app.py

@@ -1,6 +1,13 @@
 import torch  
 from transformers import AutoModelForSeq2SeqLM, AutoTokenizer
 import gradio as gr
+from transformers import RobertaConfig, RobertaModel
+
+# Create a configuration object
+config = RobertaConfig.from_pretrained('roberta-base')
+
+# Create the Roberta model
+model = RobertaModel.from_pretrained('roberta-base', config=config)
 
 # Load pretrained model and tokenizer  
 model_name = "zonghaoyang/DistilRoBERTa-base"