Why does SUPER->focusInEvent not work?

I'm trying to reimplement focusInEvent and focusOutEvent in a subclass of a 
LineEdit
widget unsuccessfully.  I basically just need to be able to execute some 
code whenever
a focusInEvent or focusOutEvent occurs, in addition to whatever would have 
normally
happened.

I've done quite a bit of searching for information on this, and the code 
below is what
I think from the PerlQt documentation should work, but it gives an error:

   --- No method to call for :
     QLineEdit::focusInEvent()

If I comment out the SUPER->focusInEvent and SUPER->focusOutEvent calls,
then the print statements get executed, so sub focusInEvent and sub 
focusOutEvent
get called properly, but I need a way to also call the standard 
focusInEvent and focusOutEvent
in the super class to get the widget to handle focus properly.

Am I doing something wrong?  Is there a different approach I can take to 
subclass
a LineEdit widget and add some additional code to be executed whenever the 
object
loses or gains focus?

Any help would be greatly appreciated.

package LineEditFocus;
use strict;
use warnings;
use Qt;
use Qt::isa qw(Qt::LineEdit);
use Qt::slots
   got_focus => [];

sub NEW {
   shift->SUPER::NEW(@_);
}

sub focusInEvent {
   print "focus in event\n";
   SUPER->focusInEvent();
}

sub focusOutEvent {
   print "focus in event\n";
   SUPER->focusInEvent();
}

1;

--
Matthew