I can't test this ATM, it's just a guess, but why not something like: 

package Utils;

...;
use List::MoreUtils ();  # note empty optional import list
...;

...;

sub uniq {
    my $self   = shift;
    # fully qualify List::MoreUtils function
    my @result = List::MoreUtils::uniq @{ $self->list };
    wantarray ? @result : scalar @result;
    }

...

1;

# And the script:

...
use Karl;
...

...
my $uniq = $nose->uniq;
...

[download]

Update: (Update: And a bit OT:) Does Moo interfere with the propagation of context in some way I'm not aware of? If not, the return statement of  my_uniq() in the OPed code
    wantarray ? @result : scalar @result;
would seem to return exactly what would be returned anyway in list or scalar context by just returning an array, i.e., the same as a
    return @result;
statement. It makes no particular difference, but I was just curious.

Give a man a fish:  <%-(-(-(-<

In reply to Re: Moo From Hell #1: How to proxy a sub from a non OO module by AnomalousMonk
in thread Moo From Hell #1: How to proxy a sub from a non OO module [SOLVED] by karlgoethebier

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