Greetings. I'm just starting with POE and found some problems writing code using it. I'm trying to write some kind of bot.

package Connector;
use strict;
use POE;
use POE::Component::IRC;

my $id = 0;
sub new {
    my $class = shift;
    my %params = @_;
    my $self = bless {}, $class;
    $params{ALIAS} = sprintf("ib_%06d", ++$id);
    $params{IRC}   = sprintf("i_%06d", $id);
    POE::Component::IRC::->new( $params{IRC} );
    POE::Session->new(
        _start          => \&_start,
        _connect        => \&_connect,
        irc_001         => \&irc_001,                     
       [%params],
    );
  return $self;
}

sub _start {
    my ($self, $heap, $kernel) = @_[OBJECT, HEAP, KERNEL];
    my (%params) = @_[ARG0..$#_];
    $heap = {
        PARAMS => {
            NICK => "",
            CONNECTED => 0,
        }
    };
    $heap->{PARAMS}{NICK} = $params{Nick} if $params{Nick};
    foreach my $key (keys %params){
        ($key eq "ALIAS" || $key eq "IRC")
            ? $heap->{$key} = $params{$key}
            : $heap->{C_INFO}{$key} = $params{$key};
    }
    $kernel->alias_set( $heap->{ALIAS} );
    $kernel->post( $heap->{IRC}, "register", ("all") );
    $kernel->yield( "_connect" );
}

sub _connect {
    my ($kernel, $heap) = @_[KERNEL, HEAP];
    $kernel->post($heap->{IRC}, "connect", {
            Nick        => $heap->{C_INFO}{"Nick"},
            Server      => $heap->{C_INFO}{"Server"},
            Port        => $heap->{C_INFO}{"Port"},
            Username    => $heap->{C_INFO}{"Username"},
            Ircname     => $heap->{C_INFO}{"Ircname"}
        }
    );
}

sub irc_001 {
}
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The problem is that $heap in &_connect is empty (in &_start all is ok). What is wrong?