public function imageTag($image, $repo, $tag = null, $force = false)
    {
        return $this->browser->post(
            $this->uri->expand(
                '/images/{image}/tag{?repo,tag,force}',
                array(
                    'image' => $image,
                    'repo' => $repo,
                    'tag' => $tag,
                    'force' => $this->boolArg($force)
                )
            )
        )->then(array($this->parser, 'expectEmpty'));
    }