package main;
use webdav;

# ...

package webdav;
require Exporter;
@ISA = qw(Exporter);

@EXPORT = qw( get_content ...);            # replace this

##</code><code>##

# same as above

@EXPORT_OK = qw( get_content ...);         # with this

##</code><code>##

use webdav qw( get_content ...);