<PackageReference Include="System.ServiceModel.Primitives" Version="6.0.0" />

System.ServiceModel.XmlUtil

static class XmlUtil
namespace System.ServiceModel { internal static class XmlUtil { public const string XmlNs = "http://www.w3.org/XML/1998/namespace"; public const string XmlNsNs = "http://www.w3.org/2000/xmlns/"; public const string XmlSerializerSchemaInstanceNamespace = "http://www.w3.org/2001/XMLSchema-instance"; public const string XmlSerializerSchemaNamespace = "http://www.w3.org/2001/XMLSchema"; public static string GetXmlLangAttribute(XmlReader reader); public static bool IsTrue(string booleanValue); public static void ReadContentAsQName(XmlReader reader, out string localName, out string ns); public static bool IsWhitespace(char ch); public static string TrimEnd(string s); public static string TrimStart(string s); public static string Trim(string s); public static void ParseQName(XmlReader reader, string qname, out string localName, out string ns); public static DateTime ReadElementContentAsDateTime(this XmlDictionaryReader reader); } }