def historical_content(self, content_id, version):
resource = self.RCONTENTS + '<STR_LIT:/>' + str(content_id)<EOL>params = {<EOL>self.PVERSION: version,<EOL>self.PSTATUS: self.VHISTORICAL,<EOL>self.PEXPAND: '<STR_LIT:U+002C>'.join(self.VEXPAND)<EOL>}<EOL>response = [response for response in self._call(resource, params)]<EOL>return response[<NUM_LIT:0>]<EOL>
Get the snapshot of a content for the given version.

        :param content_id: fetch the snapshot of this content
        :param version: snapshot version of the content