def update(self, unique_name=values.unset, callback_method=values.unset,<EOL>callback_url=values.unset, friendly_name=values.unset,<EOL>rate_plan=values.unset, status=values.unset,<EOL>commands_callback_method=values.unset,<EOL>commands_callback_url=values.unset, sms_fallback_method=values.unset,<EOL>sms_fallback_url=values.unset, sms_method=values.unset,<EOL>sms_url=values.unset, voice_fallback_method=values.unset,<EOL>voice_fallback_url=values.unset, voice_method=values.unset,<EOL>voice_url=values.unset):
return self._proxy.update(<EOL>unique_name=unique_name,<EOL>callback_method=callback_method,<EOL>callback_url=callback_url,<EOL>friendly_name=friendly_name,<EOL>rate_plan=rate_plan,<EOL>status=status,<EOL>commands_callback_method=commands_callback_method,<EOL>commands_callback_url=commands_callback_url,<EOL>sms_fallback_method=sms_fallback_method,<EOL>sms_fallback_url=sms_fallback_url,<EOL>sms_method=sms_method,<EOL>sms_url=sms_url,<EOL>voice_fallback_method=voice_fallback_method,<EOL>voice_fallback_url=voice_fallback_url,<EOL>voice_method=voice_method,<EOL>voice_url=voice_url,<EOL>)<EOL>
Update the SimInstance

:param unicode unique_name: The unique_name
:param unicode callback_method: The callback_method
:param unicode callback_url: The callback_url
:param unicode friendly_name: The friendly_name
:param unicode rate_plan: The rate_plan
:param unicode status: The status
:param unicode commands_callback_method: The commands_callback_method
:param unicode commands_callback_url: The commands_callback_url
:param unicode sms_fallback_method: The sms_fallback_method
:param unicode sms_fallback_url: The sms_fallback_url
:param unicode sms_method: The sms_method
:param unicode sms_url: The sms_url
:param unicode voice_fallback_method: The voice_fallback_method
:param unicode voice_fallback_url: The voice_fallback_url
:param unicode voice_method: The voice_method
:param unicode voice_url: The voice_url

:returns: Updated SimInstance
:rtype: twilio.rest.preview.wireless.sim.SimInstance