def default_start_index(self, value):
        """Validate and set the default start index."""
        if not isinstance(value, int):
            raise TypeError('default_start_index attribute must be of int '
                            'type.')
        self._default_start_index = value
def default_start_index ( self , value ) : if not isinstance ( value , int ) : raise TypeError ( 'default_start_index attribute must be of int ' 'type.' ) self . _default_start_index = value
Validate and set the default start index.