parameters: (self, rect, dx, dy, attr=None, fill=' ')
docstring: Scroll a rectangle.
docstring_summary: Scroll a rectangle.
docstring_tokens: Scroll a rectangle .
function: def scroll(self, rect, dx, dy, attr=None, fill=' '):
          '''Scroll a rectangle.'''
          pass
          raise NotImplementedError
function_tokens: def scroll ( self , rect , dx , dy , attr = None , fill = ' ' ) : pass raise NotImplementedError