parameters: (self, attr=None, fill=' ')
docstring: Fill the entire screen.
docstring_summary: Fill the entire screen.
docstring_tokens: Fill the entire screen .
function: def page(self, attr=None, fill=' '):
          '''Fill the entire screen.'''
          raise NotImplementedError
function_tokens: def page ( self , attr = None , fill = ' ' ) : raise NotImplementedError