#!/usr/bin/perl

use strict; 
use warnings;

package Foo;
 
sub getAStruct {
    print "This is getAStruct\n";
}
sub getBStruct {
    print "This is getBStruct\n";
}
sub getCStruct {
    print "This is getCStruct\n";
}

package main;
    
foreach my $key (keys %Foo::) {
    no strict 'refs';
    "Foo::$key" -> () if defined &{"Foo::$key"};
    # Or:
    # "Foo::$key" -> () if defined *{"Foo::$key"}{CODE};
}

__END__
This is getAStruct
This is getCStruct
This is getBStruct