Showing sprite wihout a group

I have two sprites in a class for esier control (specifickly: tank turret and suspension). If I try to launch program it works wihout any errors, but it dosen't show anything. I also tried to put both of spirtes in group in class, bu it throved errorTypeError: draw() missing 1 required positional argument: 'surface'. How I should do the displaying of my tank wihout disambling of my group?