static userAgentString(userAgentConfig) {
// eslint-disable-next-line security/detect-object-injection
const _conf = (field, def) => (userAgentConfig && field in userAgentConfig) ? userAgentConfig[field] : def;
static userAgentString(userAgentConfig) {
// eslint-disable-next-line security/detect-object-injection
const _conf = (field, def) => (userAgentConfig && field in userAgentConfig) ? userAgentConfig[field] : def;