/usr/share/perl5/Biber/Sections.pm is in biber 2.9-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 | package Biber::Sections;
use v5.24;
use strict;
use warnings;
=encoding utf-8
=head1 NAME
Biber::Sections - Biber::Sections objects
=head2 new
    Initialize a Biber::Sections object
=cut
sub new {
  my ($class) = @_;
  my $self = bless {}, $class;
  return $self;
}
=head2 get_num_sections
    Gets the number of Biber::Section objects
=cut
sub get_num_sections {
  my $self = shift;
  my @keys = keys $self->%*;
  return $#keys + 1;
}
=head2 get_section
    Gets a Biber::Section by number from the Biber::Sections object
=cut
sub get_section {
  my $self = shift;
  my $number = shift;
  return $self->{$number};
}
=head2 get_sections
    Gets an sorted array ref of all Biber::Section objects
=cut
sub get_sections {
  my $self = shift;
  return [ sort {$a->number <=> $b->number} values $self->%* ];
}
=head2 add_section
    Adds a Biber::Section to the Biber::Sections object
=cut
sub add_section {
  my $self = shift;
  my $section = shift;
  my $number = $section->number;
  $self->{$number} = $section;
  return;
}
=head2 delete_section
    Deletes a section
    Mainly used in test scripts
=cut
sub delete_section {
  my $self = shift;
  my $section = shift;
  my $number = $section->number;
  delete $self->{$number};
  return;
}
1;
__END__
=head1 AUTHORS
François Charette, C<< <firmicus at ankabut.net> >>
Philip Kime C<< <philip at kime.org.uk> >>
=head1 BUGS
Please report any bugs or feature requests on our Github tracker at
L<https://github.com/plk/biber/issues>.
=head1 COPYRIGHT & LICENSE
Copyright 2009-2017 François Charette and Philip Kime, all rights reserved.
This module is free software.  You can redistribute it and/or
modify it under the terms of the Artistic License 2.0.
This program is distributed in the hope that it will be useful,
but without any warranty; without even the implied warranty of
merchantability or fitness for a particular purpose.
=cut
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