response = client.allocate_private_virtual_interface( connectionId='string', ownerAccount='string', newPrivateVirtualInterfaceAllocation={ 'virtualInterfaceName': 'string', 'vlan': 123, 'asn': 123, 'mtu': 123, 'authKey': 'string', 'amazonAddress': 'string', 'addressFamily': 'ipv4'|'ipv6', 'customerAddress': 'string' } )