def get_instance(self, payload):
return AvailableAddOnExtensionInstance(<EOL>self._version,<EOL>payload,<EOL>available_add_on_sid=self._solution['<STR_LIT>'],<EOL>)<EOL>
Build an instance of AvailableAddOnExtensionInstance

:param dict payload: Payload response from the API

:returns: twilio.rest.preview.marketplace.available_add_on.available_add_on_extension.AvailableAddOnExtensionInstance
:rtype: twilio.rest.preview.marketplace.available_add_on.available_add_on_extension.AvailableAddOnExtensionInstance