human
Solve the following python programming problem given the following code:
@ base.skip_without_vpc () 
def test_tag_vpn_gateway(self) : 
    data = self.client.create_vpn_gateway (Type = 'ipsec.1') 
    vgw_id = data ['VpnGateway'] ['VpnGatewayId'] 
    self.addResourceCleanUp (self.client.delete_vpn_gateway, VpnGatewayId = vgw_id) 
    def describe_func(* args, **kwargs) : 
        data = self.client.describe_vpn_gateways (* args, ** kwargs) 
        self.assertEqual (1, len (data ['VpnGateways'])) 
        self.assertEqual (vgw_id, data ['VpnGateways'] [0] ['VpnGatewayId']) 
self._test_tag_resource (vgw_id, 'vpn-gateway', self) 

    
    

    Fix the buggy line: self._test_tag_resource (vgw_id, 'vpn-gateway', self)
assistant
#Here is Python program to fix the buggy line: self.

self._test_tag_resource (vgw_id, 'vpn-gateway', def describe_func()