'Fetch a CredentialListInstance
:returns: Fetched CredentialListInstance
:rtype: twilio.rest.trunking.v1.trunk.credential_list.CredentialListInstance'

def fetch(self):

    params = values.of({})
    payload = self._version.fetch('GET', self._uri, params=params)
    return CredentialListInstance(self._version, payload, trunk_sid=self._solution['trunk_sid'], sid=self._solution['sid'])
