Open Api swagger yml Config: How to ensure requests are accepted with additional query parameters

Can anyone point me to the documentation which allows additional query parameters as part of request,

For example http://myexample.com?name=dev&additional_param_1=hello&additional_param_2=world

In my api.yml I declare name query parameter as required. But I do not care if any additional parameters are provided.

Presently, when I validate my request with additional parameters. It fails, complaining that "