Implementing Steam c++ command as a blueprint node

UFUNCTION(BlueprintPure, meta = (DisplayName = “DLC 1”, CompactNodeTitle = “DLC1”, Category = Game))
static bool BIsDlcInstalled( AppId_t appID );
and

bool AGameMode_DLC::BIsDlcInstalled(AppId_t appID)
{
    return true;
}