def delete(self, start_line, end_line = None):
        try:
            if not end_line:
                end_line = start_line + 1
            self._buffer[start_line:end_line] = []
        except __HOLE__:
            del self._buffer[start_line:]
dataset/ETHPy150Open joonty/vim-do/autoload/python/buffer.py/HiddenBuffer.delete