Add a break element of *break_type* to this run. *break_type* can
        take the values `WD_BREAK.LINE`, `WD_BREAK.PAGE`, and
        `WD_BREAK.COLUMN` where `WD_BREAK` is imported from `docx.enum.text`.
        *break_type* defaults to `WD_BREAK.LINE`.

def add_break(self, break_type=WD_BREAK.LINE):
        """
        Add a break element of *break_type* to this run. *break_type* can
        take the values `WD_BREAK.LINE`, `WD_BREAK.PAGE`, and
        `WD_BREAK.COLUMN` where `WD_BREAK` is imported from `docx.enum.text`.
        *break_type* defaults to `WD_BREAK.LINE`.
        """
        type_, clear = {
            WD_BREAK.LINE:             (None,           None),
            WD_BREAK.PAGE:             ('page',         None),
            WD_BREAK.COLUMN:           ('column',       None),
            WD_BREAK.LINE_CLEAR_LEFT:  ('textWrapping', 'left'),
            WD_BREAK.LINE_CLEAR_RIGHT: ('textWrapping', 'right'),
            WD_BREAK.LINE_CLEAR_ALL:   ('textWrapping', 'all'),
        }[break_type]
        br = self._r.add_br()
        if type_ is not None:
            br.type = type_
        if clear is not None:
            br.clear = clear