human
Solve the following python programming problem given the following code:
@ base.skip_without_vpc () 
def test_tag_vpn_connection(self) : 
    data = self.client.create_customer_gateway (Type = 'ipsec.1', PublicIp = '198.51.100.77', BgpAsn = 65000) 
    cgw_id = data ['CustomerGateway'] ['CustomerGatewayId'] 
    self.addResourceCleanUp (self.client.delete_customer_gateway, CustomerGatewayId = cgw_id) 
    data = self.client.create_vpn_gateway (Type = 'ipsec.1') 
    vgw_id = data ['VpnGateway'] ['VpnGatewayId'] 
    self.addResourceCleanUp (self.client.delete_vpn_gateway, VpnGatewayId = vgw_id) 
    data = self.client.create_vpn_connection (CustomerGatewayId = cgw_id, VpnGatewayId = vgw_id, Options = { 
        'StaticRoutesOnly' : True, 
}, Type = 'ipsec.1') 
    vpn_id = data ['VpnConnection'] ['VpnConnectionId'] 
    vpn_clean = self.addResourceCleanUp (self.client.delete_vpn_connection, VpnConnectionId = vpn_id) 
    def describe_func(* args, **kwargs) : 
        data = self.client.describe_vpn_connections (* args, ** kwargs) 
        self.assertEqual (1, len (data ['VpnConnections'])) 
        self.assertEqual (vpn_id, data ['VpnConnections'] [0] ['VpnConnectionId']) 
self._test_tag_resource (vpn_id, 'vpn-connection', describe_func) 
    self.client.delete_vpn_connection (VpnConnectionId = vpn_waiter) 
    vpn_waiter = self.get_vpn_connection_waiter () 
    self.cancelResourceCleanUp (vpn_clean) 
    vpn_waiter.wait_delete (vpn_id) 

    
    

    Fix the buggy line: self.client.delete_vpn_connection (VpnConnectionId = vpn_waiter)
assistant
#Here is Python program to fix the buggy line: self.

self.client.delete_vpn_connection (VpnConnectionId = vpn_id)