BaseBriefResponseTest.list_brief_responses(): use an explicit dict "parameters" argument instead of kwargs
BaseBriefResponseTest.list_brief_responses(): use an explicit dict "parameters" argument instead of kwargs

the kwargs approach falls apart as soon as you've got a parameter name with a dash in it

alphagov/digitalmarketplace-api,alphagov/digitalmarketplace-api,alphagov/digitalmarketplace-api