Lang API 1.0.5

// Added IsReady bool which will return true/false when your plugin is loaded to know if it's ready
// Example usage below.
private bool _isLangAPIReady;
private void OnServerInitialized()
{
  if (LangAPI != null && LangAPI.IsLoaded)
    _isLangAPIReady = LangAPI.Call<bool>("IsReady");
}