class ProviderGroup {

    public int size() {
        return providerInfos == null ? 0 : providerInfos.size();
    }

    public  ProviderGroup();
    public  ProviderGroup(String name);
    public  ProviderGroup(String name, List<ProviderInfo> providerInfos);
    public  ProviderGroup(List<ProviderInfo> providerInfos);

}