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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def appliance_device_snmp_v3_trap_destinations(self):
 """ Gets the ApplianceDeviceSNMPv3TrapDestinations API client. Returns: ApplianceDeviceSNMPv3TrapDestinations: """

        if not self.__appliance_device_snmp_v3_trap_destinations:
            self.__appliance_device_snmp_v3_trap_destinations = ApplianceDeviceSNMPv3TrapDestinations(self.__connection)
        return self.__appliance_device_snmp_v3_trap_destinations