def fetch(self):
params = values.of({})<EOL>payload = self._version.fetch(<EOL>'<STR_LIT:GET>',<EOL>self._uri,<EOL>params=params,<EOL>)<EOL>return ServiceInstance(self._version, payload, sid=self._solution['<STR_LIT>'], )<EOL>
Fetch a ServiceInstance

:returns: Fetched ServiceInstance
:rtype: twilio.rest.chat.v1.service.ServiceInstance