How to use the genshi.builder.tag.tr function in Genshi

def test_genshi_builder():
        """Genshi template + tag builder"""
        stream = tag.TABLE([
            tag.tr([tag.td(c) for c in row.values()])
            for row in table
        ]).generate()
        stream = genshi_tmpl2.generate(table=stream)
        stream.render('html', strip_whitespace=False)

def make_list(items):
                parts = [item.rsplit('.', 1) for item in items]
                return tag.table(tag.tbody(
                    tag.tr(tag.td(c, class_='trac-name'),
                           tag.td('(%s.*)' % m, class_='trac-name'))
                    for m, c in parts), class_='trac-pluglist')

revs_link(removed, old_context)),
                    added_ni and tag(added_ni_label,
                                     revs_link(added_ni, new_context)),
                    removed_ni and tag(removed_ni_label,
                                       revs_link(removed_ni, old_context))
                    ))
        # Go through remaining old sources, those were deleted
        removed_sources = []
        for spath, old_revs in old_sources.iteritems():
            removed_sources.append((spath,
                                    _get_source_link(spath, old_context)))
        if modified_sources or removed_sources:
            modified_sources.sort()
            removed_sources.sort()
            changes = tag.table(tag.tbody(
                [tag.tr(tag.td(c) for c in cols[1:])
                 for cols in modified_sources],
                [tag.tr(tag.td(src), tag.td(_('removed'), colspan=4))
                 for spath, src in removed_sources]), class_='props')
        else:
            changes = tag.em(_(' (with no actual effect on merging)'))
        return tag.li(tag_('Property %(prop)s changed', prop=tag.strong(name)),
                      changes)

def expand_macro(self, formatter, name, content):
        interwikis = []
        for k in sorted(self.keys()):
            prefix, url, title = self[k]
            interwikis.append({
                'prefix': prefix, 'url': url, 'title': title,
                'rc_url': self._expand_or_append(url, ['RecentChanges']),
                'description': url if title == prefix else title})

        return tag.table(tag.tr(tag.th(tag.em("Prefix")),
                                tag.th(tag.em("Site"))),
                         [tag.tr(tag.td(tag.a(w['prefix'], href=w['rc_url'])),
                                 tag.td(tag.a(w['description'],
                                              href=w['url'])))
                          for w in interwikis ],
                         class_="wiki interwiki")

from trac.mimeview.api import Mimeview
        mime_map = Mimeview(self.env).mime_map
        mime_type_filter = ''
        args, kw = parse_args(args)
        if args:
            mime_type_filter = args.pop(0).strip().rstrip('*')

        mime_types = {}
        for key, mime_type in mime_map.iteritems():
            if (not mime_type_filter or
                mime_type.startswith(mime_type_filter)) and key != mime_type:
                mime_types.setdefault(mime_type, []).append(key)

        return tag.div(class_='mimetypes')(
            tag.table(class_='wiki')(
                tag.thead(tag.tr(
                    tag.th(_("MIME Types")), # always use plural
                    tag.th(tag.a("WikiProcessors",
                                 href=formatter.context.href.wiki(
                                     'WikiProcessors'))))),
                tag.tbody(
                    tag.tr(tag.th(tag.tt(mime_type),
                                  style="text-align: left"),
                           tag.td(tag.code(
                               ' '.join(sorted(mime_types[mime_type])))))
                    for mime_type in sorted(mime_types.keys()))))