'Update the ServiceInstance
:param unicode friendly_name: The friendly_name
:param unicode inbound_request_url: The inbound_request_url
:param unicode inbound_method: The inbound_method
:param unicode fallback_url: The fallback_url
:param unicode fallback_method: The fallback_method
:param unicode status_callback: The status_callback
:param bool sticky_sender: The sticky_sender
:param bool mms_converter: The mms_converter
:param bool smart_encoding: The smart_encoding
:param ServiceInstance.ScanMessageContent scan_message_content: The scan_message_content
:param bool fallback_to_long_code: The fallback_to_long_code
:param bool area_code_geomatch: The area_code_geomatch
:param unicode validity_period: The validity_period
:param bool synchronous_validation: The synchronous_validation
:returns: Updated ServiceInstance
:rtype: twilio.rest.messaging.v1.service.ServiceInstance'

def update(self, friendly_name=values.unset, inbound_request_url=values.unset, inbound_method=values.unset, fallback_url=values.unset, fallback_method=values.unset, status_callback=values.unset, sticky_sender=values.unset, mms_converter=values.unset, smart_encoding=values.unset, scan_message_content=values.unset, fallback_to_long_code=values.unset, area_code_geomatch=values.unset, validity_period=values.unset, synchronous_validation=values.unset):

    return self._proxy.update(friendly_name=friendly_name, inbound_request_url=inbound_request_url, inbound_method=inbound_method, fallback_url=fallback_url, fallback_method=fallback_method, status_callback=status_callback, sticky_sender=sticky_sender, mms_converter=mms_converter, smart_encoding=smart_encoding, scan_message_content=scan_message_content, fallback_to_long_code=fallback_to_long_code, area_code_geomatch=area_code_geomatch, validity_period=validity_period, synchronous_validation=synchronous_validation)
