Can we call a class in test sequence

Test sequence can use function declared in any mscript for example The below line works perfectly

*step_1

Stick1_Raw_Data.Stick_Main_Sensor_TRX1_Raw_Data = update_or_initialize_Stick_Raw_Data();*

function  Stick_Raw_Data_Stick_Main_Sensor_TRX1_Raw_Data = update_or_initialize_Stick_Raw_Data(x,x_error,y,y_error)
% Sets the inital value or update the value
if nargin < 4 
  Stick_Raw_Data_Stick_Main_Sensor_TRX1_Raw_Data = struct();
  Stick_Raw_Data_Stick_Main_Sensor_TRX1_Raw_Data.X = int16(0);
  Stick_Raw_Data_Stick_Main_Sensor_TRX1_Raw_Data.X_Error = uint8(0);
  Stick_Raw_Data_Stick_Main_Sensor_TRX1_Raw_Data.Y = int16(0);
  Stick_Raw_Data_Stick_Main_Sensor_TRX1_Raw_Data.Y_Error = uint8(0);
else
Stick_Raw_Data_Stick_Main_Sensor_TRX1_Raw_Data = struct();
Stick_Raw_Data_Stick_Main_Sensor_TRX1_Raw_Data.X = int16(x);
Stick_Raw_Data_Stick_Main_Sensor_TRX1_Raw_Data.X_Error = uint8(x_error);
Stick_Raw_Data_Stick_Main_Sensor_TRX1_Raw_Data.Y = int16(y);
Stick_Raw_Data_Stick_Main_Sensor_TRX1_Raw_Data.Y_Error = uint8(y_error);
end
end

But can we also use it to declare and use a object

step_3

m = Stick_Raw_Data_Stick_Main_Sensor_TRX_Raw_Data;

%Stick1_Raw_Data.Stick_Main_Sensor_TRX1_Raw_Data = m.update(int16(23),uint8(0),int16(1500),uint8(0));

classdef Stick_Raw_Data_Stick_Main_Sensor_TRX_Raw_Data
   properties
    X
  X_Error
  Y
  Y_Error
   end
   methods
      function r = initialize(obj)
       r.X = int16(0);
           r.X_Error = uint8(0);
           r.Y = int16(0);
           r.Y_Error = uint8(0);
      end
      function r = update(obj,x,x_error,y,y_error)
            r.X = int16(x);
            r.X_Error = uint8(x_error);
            r.Y = int16(y);
            r.Y_Error = uint8(y_error);
      end
   end
end

Getting error Chart 'Test Sequence' has unresolved symbols.