Due to the work I'm doing processing returned API data, I need bools decoded using JSON::decode to be numeric, rather than JSON::PP::Boolean.

CPAN docs are great, just use $json->boolean_values(0,1);

Unfortunately that method doesn't seem to be getting exported:

#!perl -l

use 5.012; # strict, //
use warnings;
use JSON 4.0;
use Data::Dumper;

print "JSON::VERSION = $JSON::VERSION\n";

my $json = JSON->new;
$json->boolean_values(0,1);


test@BruceDEV:~$ perl Perl-Testing/JSON-boolean_values.pl
JSON::VERSION = 4.02

Can't locate object method "boolean_values" via package "JSON" at Perl
+-Testing/JSON-boolean_values.pl line 11.
[download]

I'm using Debian packages for the libraries we have infrastructure teams maintaining our systems & having them update via CPAN causes issues However the modules do look correct.

Debian GNU/Linux 10

ii  libjson-perl                          4.02000-1                   
+                all          module for manipulating JSON-formatted d
+ata
ii  libjson-xs-perl                       3.040-1+b1                  
+                amd64        module for manipulating JSON-formatted d
+ata (C/XS-accelerated)
[download]

Looking at the contents of /usr/share/perl5/JSON.pm I see this, so it looks like it's definitely the right module, although I'm a little suspicious as a number of the methods in the docs, including boolean_values don't seem to be exported.

package JSON;


use strict;
use Carp ();
use Exporter;
BEGIN { @JSON::ISA = 'Exporter' }

@JSON::EXPORT = qw(from_json to_json jsonToObj objToJson encode_json d
+ecode_json);

BEGIN {
    $JSON::VERSION = '4.02';
    $JSON::DEBUG   = 0 unless (defined $JSON::DEBUG);
    $JSON::DEBUG   = $ENV{ PERL_JSON_DEBUG } if exists $ENV{ PERL_JSON
+_DEBUG };
}


[...]

=head2 boolean_values (since version 4.0)

    $json->boolean_values([$false, $true])

    ($false,  $true) = $json->get_boolean_values

By default, JSON booleans will be decoded as overloaded
C<$JSON::false> and C<$JSON::true> objects.
[download]

Any pointers ?, I *really* don't want to move to using CPAN directly on these devices, given how they're maintained.

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