<PackageReference Include="System.Configuration.ConfigurationManager" Version="10.0.0-rc.1.25451.107" />

System.Configuration.ValidatorUtils

static class ValidatorUtils
namespace System.Configuration { internal static class ValidatorUtils { public static void HelperParamValidation(object value, Type allowedType); public static void ValidateScalar<T>(T value, T min, T max, T resolution, bool exclusiveRange) where T : IComparable<T>; public static void ValidateScalar(TimeSpan value, TimeSpan min, TimeSpan max, long resolutionInSeconds, bool exclusiveRange); } }