public IEnumerable <TargetFramework> GetFrameworks()
        {
            if (framework.IsNetStandard())
            {
                return(GetNetStandardTargetFrameworks());
            }
            else if (framework.IsNetCoreApp())
            {
                return(GetNetCoreAppTargetFrameworksWithSdkSupport());
            }
            else if (framework.IsNetFramework())
            {
                return(GetNetFrameworkTargetFrameworks());
            }

            return(new TargetFramework [0]);
        }