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

:returns: Fetched NumberInstance
:rtype: twilio.rest.pricing.v1.voice.number.NumberInstance