namespace eabridge::example {

class Account : public NamedElement {
public:
    AddressBook* uses{nullptr};
    [[nodiscard]] std::string getEmailAddress();
protected:
    std::string emailAddress{""};
};

@dataclass
class Account(NamedElement):
    """
    An Account has a name and an email
    address and may use address books.
    """
    _emailAddress: str
    uses: AddressBook

    def get_email_address(self) -> str: …

package eabridge.example;

/** An Account has a name and an email address
 *  and may use address books. */
public class Account extends NamedElement {

    protected String emailAddress;
    private AddressBook uses;

    public String getEmailAddress() { … }
}