-has source_version => (is => 'ro',
- isa => 'Str',
- builder => '_build_source_version',
- predicate => '_has_source_version',
- clearer => '_clear_source_version',
- );
-
-has source => (is => 'ro',
- isa => 'Debbugs::Package',
- lazy => 1,
- writer => 'set_source',
- builder => '_build_source',
- predicate => '_has_source',
- clearer => '_clear_source',
- );
-
-has packages => (is => 'rw',
- isa => 'Debbugs::Collection::Package',
- writer => 'set_package',
- builder => '_build_package',
- predicate => '_has_package',
- clearer => '_clear_package',
- );