app.py

import gradio as gr


def greet(description,color):
    final = description.replace(' ', '-')
    print(color)
    return final

iface = gr.Interface(fn=greet, 
                     inputs=[gr.Textbox(label='Description'),
                            gr.Dropdown(label='Color',choices=['Beige','Black','Blue','Brown','Green','Grey','Orange','Pink','Purple','Red','White','Yellow'],multiselect=True)], 
                     outputs="text")
iface.launch()