Given the following callback function code, what variable is passed to guidata?

varargin$1=$ get$($handles$.$in$1$Tag,'String'$)$; varargin$2=$ get$($handles$.$in$2$Tag,'String'$)$; convert $=$ str$2$num$($varargin$1)/$ str$2$num$($varargin$2)$; convertstr $=$ num$2$str$($convert$)$; set$($handles$.$resultTag,'String', convertstr$)$; guidata$($hObject$,$handles$)$;