This packet is sent by the server to ask the client to authenticate.
This packet has several sub-types and should not be modified unless you are intimately familiar with Vertica authentication protocols.
See the Vertica documentation for details.
int1 (int): an integer whose meaning depends on the authentication protocol in use
bytes (byte[]): some binary data whose meaning depends on the authentication protocol in use
strings (List<string>): some authentication protocols use readable strings that may sometimes be useful
This packet type has no methods aside from the common ones.