See also the Address response object.

Address address = gateway.address().find("a_customer_id", "an_address_id");

If the address or customer can't be found, it will throw a NotFoundException.

customerId required, string

A string value representing an existing customer in your Vault.

addressId required, string

The two-letter value for an address associated with a specific customer ID. The maximum number of addresses per customer is 50.