code: def get_instance(self, payload):
          
          return AvailablePhoneNumberCountryInstance(
              self._version,
              payload,
              account_sid=self._solution['account_sid'],
          )
docs: Build an instance of AvailablePhoneNumberCountryInstance
  
          :param dict payload: Payload response from the API
  
          :returns: twilio.rest.api.v2010.account.available_phone_number.AvailablePhoneNumberCountryInstance
          :rtype: twilio.rest.api.v2010.account.available_phone_number.AvailablePhoneNumberCountryInstance