def METHOD_NAME():
    client = boto3.client("ec2", region_name="us-east-1")
    vpn_connection = client.create_vpn_connection(
        Type="ipsec.1", VpnGatewayId="vgw-0123abcd", CustomerGatewayId="cgw-0123abcd"
    )["VpnConnection"]
    conns = retrieve_all_vpncs(client)
    assert vpn_connection["VpnConnectionId"] in [c["VpnConnectionId"] for c in conns]
    client.delete_vpn_connection(VpnConnectionId=vpn_connection["VpnConnectionId"])
    conns = retrieve_all_vpncs(client)
    assert vpn_connection["VpnConnectionId"] in [c["VpnConnectionId"] for c in conns]
    my_cnx = [
        c for c in conns if c["VpnConnectionId"] == vpn_connection["VpnConnectionId"]
    ][0]
    assert my_cnx["State"] == "deleted"