You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: teach.m
    path of file: ./repos/robotics-toolbox-matlab/interfaces/@Create
    
    the code of the file until where you have to start completion: function varargout = RobotGuiControl(varargin)
%varargout = Robo
    
function pushbutton_enter_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton_enter (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global ser keyPresses startTime elapsedTime 
global sV sD bV bD sW sA bW bA

keyPresses(1) = keyPresses(1) +1;
if isempty(startTime)
    startTime = tic;
else
   elapsedTime = toc(startTime);
   fprintf('Sec:  %f,  Keystrokes: %d \n ', [elapsedTime keyPresses(1) ]);
end