def refresh(self):
j = self.vera_request(id='<STR_LIT>', output_format='<STR_LIT>').json()<EOL>devices = j.get('<STR_LIT>')<EOL>for device_data in devices:<EOL><INDENT>if device_data.get('<STR_LIT:id>') == self.device_id:<EOL><INDENT>self.update(device_data)<EOL><DEDENT><DEDENT>
Refresh the dev_info data used by get_value.

        Only needed if you're not using subscriptions.