问什么是NuGet API来帮助选择与给定的项目目标框架最匹配的给定的Nuget包目标框架？

EN

public class FrameworkFromLibFolderPath : IFrameworkSpecific
{
    public FrameworkFromLibFolderPath(string libFolderPath)
    {
        LibFolderPath = libFolderPath;
        TargetFramework = NuGetFramework.ParseFolder(Path.GetFileName(libFolderPath));
    }

    public readonly string LibFolderPath;

    public NuGetFramework TargetFramework { get; }
}

var packageFrameworks = Directory
    .EnumerateDirectories(baseLibFolderPath)
    .Select(libFolderPath => new FrameworkFromLibFolderPath(libFolderPath))
    .ToList();
var path = packageFrameworks.Count > 0 ? packageFrameworks.GetNearest(framework).LibFolderPath : baseLibFolderPath;