syntax = "proto3"; package gatewayprotocol.v1; import "gatewayprotocol/v1/error.proto"; option swift_prefix = "Gateway"; message AdDataRefreshResponse { // non empty if fill otherwise empty bytes ad_data = 1; // version of the ad markup. Use to determine which parser to use. int32 ad_data_version = 2; // non empty if fill otherwise empty bytes tracking_token = 3; // Ad Data Refresh Token to be used to refresh ad markup bytes ad_data_refresh_token = 4; // If set, there was an error processing the request. optional Error error = 5; }