app.py

import gradio as gr

from transformers import pipeline




def translate(text,number):
    if number==1:
        model='Helsinki-NLP/opus-mt-en-es'
    else if number==2:
        model='Helsinki-NLP/opus-mt-en-fr'
    else:
        model='Helsinki-NLP/opus-mt-en-ru'

    pipe=pipeline(model)  
    return  pipe(text)




demo = gr.Interface(fn=translate, inputs="text,number", outputs="json")
demo.launch()