Update app.py

Fix runtime error.

app.py

@@ -86,13 +86,12 @@ pegasus_tkn = PegasusTokenizer.from_pretrained(mdl_name)
 mdl = PegasusForConditionalGeneration.from_pretrained(mdl_name)
 
 def summarize(text):
-    tokens = pegasus_tkn(text, truncation=True, padding="longest", return_tensors="pt")
-    txt_summary = mdl.generate(**tokens)
-    response = pegasus_tkn.batch_decode(txt_summary, skip_special_tokens=True)
+    tokens = pegasus_tkn(text, truncation=True, padding="longest", return_tensors="pt")
+    txt_summary = mdl.generate(**tokens)
+    response = pegasus_tkn.batch_decode(txt_summary, skip_special_tokens=True)
     return response
 
 txt = grad.Textbox(lines=10, label="English", placeholder="English Text here")
 out = grad.Textbox(lines=10, label="Summary")
 
 grad.Interface(summarize, inputs=txt, outputs=out).launch()
-