The ListAddressBooks method lists all the available address books within the your dotMailer account.
This will return the ID numbers of the address books which you will need for other API methods.
||This is the username from your API key. It is in the format of an email address and will look similar to apiuser‑firstname.lastname@example.org
||This is the password from your API key.
||An array of APIAddressBook objects; each consisting of an ID (integer) and a name (string).