我可以用扩展方法Dictionary<int，ViewModel>映射到Dictionary<int，DTOl>吗？

public static class DictionaryExtensions
{
    public static Dictionary<int, DTOl> ToDTOlDictionary(this Dictionary<int, ViewModel> viewModelDictionary)
    {
        Dictionary<int, DTOl> dtoDictionary = new Dictionary<int, DTOl>();

        foreach (var kvp in viewModelDictionary)
        {
            int key = kvp.Key;
            ViewModel viewModel = kvp.Value;

            // 进行从ViewModel到DTOl的转换
            DTOl dto = new DTOl();
            // 进行属性赋值等操作

            dtoDictionary.Add(key, dto);
        }

        return dtoDictionary;
    }
}

Dictionary<int, ViewModel> viewModelDictionary = new Dictionary<int, ViewModel>();
// 添加键值对到viewModelDictionary

Dictionary<int, DTOl> dtoDictionary = viewModelDictionary.ToDTOlDictionary();