/usr/share/perl5/NetApp/Snapshot/Schedule.pm is in libnetapp-perl 1.1.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# $Id: Snapmirror.pm 203 2008-06-20 18:00:43Z pmoore $
#
package NetApp::Snapshot::Schedule;
use version; $VERSION = version->new(qw$Revision: 203 $);
use strict;
use warnings;
use Carp;
use Class::Std;
use Params::Validate qw( :all );
{
    my %parent_of		:ATTR( get => 'parent' );
    my %weekly_of		:ATTR( get => 'weekly' );
    my %daily_of		:ATTR( get => 'daily' );
    my %hourly_of		:ATTR( get => 'hourly' );
    my %hourlist_of		:ATTR;
    sub BUILD {
        my ($self,$ident,$args_ref) = @_;
        my @args = %$args_ref;
        my (%args) 	= validate( @args, {
            parent	=> { type	=> OBJECT },
            weekly	=> { type	=> SCALAR },
            daily	=> { type	=> SCALAR },
            hourly	=> { type	=> SCALAR },
            hourlist	=> { type	=> ARRAYREF,
                             default	=> [],
                             optional	=> 1 },
        });
        $parent_of{$ident}	= $args{parent};
        $weekly_of{$ident}	= $args{weekly};
        $daily_of{$ident}	= $args{daily};
        $hourly_of{$ident}	= $args{hourly};
        $hourlist_of{$ident}	= $args{hourlist};
    }
    sub get_hourlist {
        return @{ $hourlist_of{ident shift} };
    }
}
sub _parse_snap_sched {
    my $class		= shift;
    my $line		= shift;
    my ($weekly,$daily,$hourly,$hourlist) = (split( /[@\s]+/, $line ))[2..5];
    if ( $hourlist ) {
        $hourlist	= [ split( /,/, $hourlist ) ];
    } else {
        $hourlist	= [];
    }
    if ( $weekly !~ /^\d+$/ || $daily !~ /^\d+$/ || $hourly !~ /^\d+$/ ) {
        croak("Unable to parse snap sched: $line\n");
    }
    return {
        weekly		=> $weekly,
        daily		=> $daily,
        hourly		=> $hourly,
        hourlist	=> $hourlist,
    };
}
1;
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