github.com/prebid/prebid-server/v2@v2.18.0/adapters/appnexus/appnexustest/exemplary (about) dynamic-keywords-params.json native-1.1.json optional-params.json schain-24-other-ext.json schain-24.json schain-25-other-ext.json schain-25.json simple-banner-foreign-currency.json simple-banner.json simple-video.json string-keywords-params.json video-invalid-category.json