public function get_group_picture(\renderer_base $renderer) {
        if (isset($this->userfrom->groups)) {
            $groups = $this->userfrom->groups[$this->forum->id];
        } else {
            $groups = groups_get_all_groups($this->course->id, $this->author->id, $this->cm->groupingid);
        }

        if ($this->get_is_firstpost()) {
            return print_group_picture($groups, $this->course->id, false, true, true, true);
        }
    }