<PackageReference Include="NETStandard.Library" Version="2.0.1" />

System.Net.Cache.HttpRequestCachePolicy

namespace System.Net.Cache { public class HttpRequestCachePolicy : RequestCachePolicy { public DateTime CacheSyncDate { get; } public new HttpRequestCacheLevel Level { get; } public TimeSpan MaxAge { get; } public TimeSpan MaxStale { get; } public TimeSpan MinFresh { get; } public HttpRequestCachePolicy(); public HttpRequestCachePolicy(DateTime cacheSyncDate); public HttpRequestCachePolicy(HttpCacheAgeControl cacheAgeControl, TimeSpan ageOrFreshOrStale); public HttpRequestCachePolicy(HttpCacheAgeControl cacheAgeControl, TimeSpan maxAge, TimeSpan freshOrStale); public HttpRequestCachePolicy(HttpCacheAgeControl cacheAgeControl, TimeSpan maxAge, TimeSpan freshOrStale, DateTime cacheSyncDate); public HttpRequestCachePolicy(HttpRequestCacheLevel level); } }