<PackageReference Include="System.Text.Encodings.Web" Version="11.0.0" />

System.Text.Unicode.Utf16Utility

static class Utf16Utility
namespace System.Text.Unicode { internal static class Utf16Utility { } } namespace System.Text.Unicode { public sealed class UnicodeRange { public int FirstCodePoint { get; } public int Length { get; } public UnicodeRange(int firstCodePoint, int length); public static UnicodeRange Create(char firstCharacter, char lastCharacter); } }