How to use the tubeup.TubeUp.TubeUp.determine_licenseurl function in tubeup

except:
                print ("No categories found.")

        if 'tags' in vid_meta: # some video services don't have tags
            try:
                if 'tags' in vid_meta is None:
                    tags_string += '%s;' % vid_meta['id']
                    tags_string += '%s;' % 'video'
                else:
                    for tag in vid_meta['tags']:
                        tags_string += '%s;' % tag
            except:
                print ("Unable to process tags successfully.")

        # license
        licenseurl = TubeUp.determine_licenseurl(vid_meta)

        # if there is no description don't upload the empty .description file
        description_text = vid_meta.get('description', '')

        description = ('{0} <br><br>Source: <a href="{1}">{2}</a>'
                       '<br>Uploader: <a href="{3}">{4}</a>').format(
            description_text, videourl, videourl, uploader_url, uploader)

        metadata = dict(
            mediatype=('audio' if collection == 'opensource_audio'
                       else 'movies'),
            creator=uploader,
            collection=collection,
            title=title,
            description=description,
            date=upload_date,