@JvmStatic @JvmOverloads fun init(context: Context, appKey: String, loggingEnabled: Boolean = false, hosts: ServerHosts = ServerHosts(), approvalType: ApprovalType = ApprovalType()): Unit
ReactiveX Kakao SDK 초기화. Application.onCreate 내에서 호출 권장.
context - Android Context
context
appKey - Kakao Native App Key
appKey