use Modern::Perl;
use CGI qw ( -utf8 );
use C4::Context;
-use C4::Output;
-use C4::Auth;
-use C4::Koha;
+use C4::Output qw( output_html_with_http_headers );
+use C4::Auth qw( get_template_and_user );
use C4::Letters;
use C4::Members;
-use C4::Overdues;
+use C4::Overdues qw( GetOverdueMessageTransportTypes );
use Koha::Libraries;
use Koha::Patron::Categories;