Make QueryFilter a new style class
Make QueryFilter a new style class

alphagov/digitalmarketplace-search-api,RichardKnop/digitalmarketplace-search-api,RichardKnop/digitalmarketplace-search-api,alphagov/digitalmarketplace-search-api,RichardKnop/digitalmarketplace-search-api,RichardKnop/digitalmarketplace-search-api