How to get code to convert response raw data to string using dlms c# library

i am trying to connect to smart meter through Medial type serial and i got the response properly

here is my code

public class Test
{
static GXDLMSClient client = new GXDLMSClient();
public static IGXMedia Media = null;
public static TraceLevel Trace = TraceLevel.Info;

public static void Main()
{
GXSerial serial = new GXSerial();
serial.PortName = "COM3";
serial.BaudRate = 9600;
serial.Parity = Parity.None;
serial.StopBits = StopBits.One;

// Is used Logican Name or Short Name referencing.
client.UseLogicalNameReferencing = true;

// Is used HDLC or COSEM transport layers for IPv4 networks (IEC 62056-47)
client.InterfaceType = InterfaceType.HDLC;
client.ClientAddress = 32;
client.ServerAddress = 1;
client.Authentication = Authentication.Low;
client.Password = ASCIIEncoding.ASCII.GetBytes("1111111111111111");
Media = serial as IGXMedia;
Media.Open();
GXReplyData reply = new GXReplyData();
byte[] data;
data = client.SNRMRequest();
if (data != null)
{
ReadDLMSPacket(data, reply);
//Has server accepted client.
client.ParseUAResponse(reply.Data);
}

//Generate AARQ request.
//Split requests to multiple packets if needed.
//If password is used all data might not fit to one packet.
foreach (byte[] it in client.AARQRequest())
{
reply.Clear();
reply = ReadDLMSPacket(it, reply);
}

//Parse reply.
client.ParseAAREResponse(reply.Data);
Console.WriteLine("Conformance: " + client.NegotiatedConformance);
Console.WriteLine(client.ConnectionState);
byte[][] obj = client.Read("0.0.96.1.0.255", ObjectType.Data,2);
reply = new GXReplyData();
ReadDataBlock(obj, reply);
}

in the above code last line ReadDataBlock(obj, reply); reply.value contains response that is in readable format only

but i need a logic how raw data of response is converting to readable string

i debug the gurux.dlms class library

[Obsolete("Use Read")]
public byte[][] Read(object name, ObjectType objectType, int attributeOrdinal)
{
return Read(name, objectType, attributeOrdinal, null, 0);
}

private byte[][] Read(object name, ObjectType objectType, int attributeOrdinal, GXByteBuffer data, int mode)
{
if (attributeOrdinal < 0)
{
throw new ArgumentException("Invalid parameter");
}

Settings.ResetBlockIndex();
GXByteBuffer gXByteBuffer = new GXByteBuffer();
if (UseLogicalNameReferencing)
{
gXByteBuffer.SetUInt16((ushort)objectType);
gXByteBuffer.Set(GXCommon.LogicalNameToBytes((string)name));
gXByteBuffer.SetUInt8((byte)attributeOrdinal);
if (data == null || data.Size == 0)
{
gXByteBuffer.SetUInt8(0);
}
else
{
gXByteBuffer.SetUInt8(1);
}

return GXDLMS.GetLnMessages(new GXDLMSLNParameters(Settings, 0u, Command.GetRequest, 1, gXByteBuffer, data, byte.MaxValue, Command.None)
{
AccessMode = mode
});
}

above read method is returning the expected result

but i need to check GXDLMS.GetLnMessages method logic but i am unable see the source code