def merge(self, across=False):
url = self.build_url(self._endpoints.get('<STR_LIT>'))<EOL>return bool(self.session.post(url, data={'<STR_LIT>': across}))<EOL>
Merge the range cells into one region in the worksheet.
:param bool across: Optional. Set True to merge cells in each row of the
 specified range as separate merged cells.