Program Repair Shop 42

_obs_get_parent_observers

       164      unless ( ref $P{ $class } eq 'ARRAY' ) {
       165          my @parent_path = Class::ISA::super_path( $class );
       168          my @observable_parents = ();
       169          foreach my $parent ( @parent_path ) {
       170              next if ( $parent eq 'Class::Observable' );
       171              if ( $parent->isa( 'Class::Observable' ) ) {
       172                  push @observable_parents, $parent;
       173              }
       174          }
       175          $P{ $class } = \@observable_parents;
       178      }