def update(self, defaults=values.unset):
data = values.of({'<STR_LIT>': serialize.object(defaults), })<EOL>payload = self._version.update(<EOL>'<STR_LIT:POST>',<EOL>self._uri,<EOL>data=data,<EOL>)<EOL>return DefaultsInstance(self._version, payload, assistant_sid=self._solution['<STR_LIT>'], )<EOL>
Update the DefaultsInstance

:param dict defaults: A JSON string that describes the default task links.

:returns: Updated DefaultsInstance
:rtype: twilio.rest.autopilot.v1.assistant.defaults.DefaultsInstance