HatangAppInfo
data class HatangAppInfo(val appVersion: String? = null, val buildNumber: String? = null, val os: String = "android", val osVersion: String? = null, val deviceModel: String? = null, val deviceLocale: String? = null)
What the SDK tells the gateway about the host app and device. The Android module fills it from the package manager and Build; hosts may pass their own.