There's a saying, use the source luke, so here's a quote from the source

# Constructor method for Net::IRC::Event objects.
# Takes at least 4 args:  the type of event
#                         the person or server that initiated the even
+t
#                         the recipient(s) of the event, as arrayref o
+r scalar
#                         the name of the format string for the event
#            (optional)   any number of arguments provided by the even
+t
sub new {
    my $class = shift;

    # -- #perl was here! --
    #   \mjd: Under the spreading foreach loop, the lexical variable s
+tands.
    #   \mjd: The my is a mighty keyword, with abcessed anal glands.
    #   \mjd: Apologies to Mr. Longfellow.

    my $self = { 'type'   =>  $_[0],
         'from'   =>  $_[1],
         'to'     =>  ref($_[2]) eq 'ARRAY'  ?  $_[2]  :  [ $_[2] ],
         'format' =>  $_[3],
         'args'   =>  [ @_[4..$#_] ],
           };
    
    bless $self, $class;
    
    if ($self->{'type'} !~ /\D/) {
        $self->{'type'} = $self->trans($self->{'type'});
    } else {
        $self->{'type'} = lc $self->{'type'};
    }

    #  ChipDude: "Beware the method call, my son!  The subs that grab,
+ the
    #             args that shift!"
    #      \mjd: That's pretty good.

    $self->from($self->{'from'});     # sets nick, user, and host
    $self->args(@{$self->{'args'}});  # strips colons from args
    
    return $self;
}

*snip*

# Dumps the contents of an event to STDERR so you can see what's insid
+e.
# Takes no args.
sub dump {
[download]

Question: heard of Data::Dumper?