#!/usr/bin/perl
use diagnostics;
use URI;
my $uri = URI->new("-invalid-input-harhar-")->canonical;
my $host = $uri->host;

Can't locate object method "host" via package "URI::_generic" at /tmp/foo.pl
        line 5 (#1)
    (F) You called a method correctly, and it correctly indicated a package
    functioning as a class, but that package doesn't define that particular
    method, nor does any of its base classes.  See perlobj.
    
Uncaught exception from user code:
        Can't locate object method "host" via package "URI::_generic" at /tmp/foo.pl line 5.
 at /tmp/foo.pl line 5