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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def render(template_path, output_file=None, **kwargs):
 """ Render jinja2 template file use absolute path. **Usage** A simple template as follow: .. code-block:: jinja This is a test template {{ title }} Then write render code by single line. .. code-block:: python render('template.tpl', name='toolkit') :param template_path: absolute file path of template file. :param output_file: the path of output file. :param kwargs: keyword arguments for template. """

    template = get_template(template_path)
    rendered = template.render(**kwargs)
    if not output_file:
        return rendered
    with open(output_file) as f:
        f.write(rendered)