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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_desktop_size(self):
 """Get the size of the desktop display"""


        _ptr = ffi.new('SDL_DisplayMode *')
        check_int_err(lib.SDL_GetDesktopDisplayMode(self._index, _ptr))
        return (_ptr.w, _ptr.h)