<PackageReference Include="System.Data.SqlClient" Version="4.8.1" />

Microsoft.SqlServer.Server.IBinarySerialize

public interface IBinarySerialize
Provides custom implementation for user-defined type (UDT) and user-defined aggregate serialization and deserialization.
namespace Microsoft.SqlServer.Server { public interface IBinarySerialize { void Read(BinaryReader r); void Write(BinaryWriter w); } }