Flask app deployment

I have a flask app and I want to deploy it but when I run the code I have the warning “WARNING: This is
a development server. Do not use it in a production deployment. Use a production WSGI server instead.”, does anyone know what I need to do so that it allows me to deploy to my flask app?

(the flask app also contains requests)

Exactly what steps do you take, in order to do this?

The flask documentation on deployment explains some of the options for deploying to production, which may be a good place to start