human
Complete the below
def _render_cmd(cmd, cwd, template, saltenv='base', pillarenv=None, pillar_override=None):

    ''''If template is a valid template engine, process the cmd and cwd through
    that engine.'
    '''
assistant
#Here is the Python program you requested.
    if (not template):
        return (cmd, cwd)
    if (template not in salt.utils.templates.TEMPLATE_REGISTRY):
        raise CommandExecutionError('Attempted    to    render    file    paths    with    unavailable    engine    {0}'.format(template))
    kwargs = {}
    kwargs['salt'] = __salt__
    if ((pillarenv is not None) or (pillar_override is not None)):
        pillarenv = (pillarenv or __opts__['pillarenv'])
        kwargs['pillar'] = _gather_pillar(pillarenv, pillar_override)
    else:
        kwargs['pillar'] = __pillar__
    kwargs['grains'] = __grains__
    kwargs['opts'] = __opts__
    kwargs['saltenv'] = saltenv
    def _render(contents):
        tmp_path_fn = salt.utils.files.mkstemp()
        with salt.utils.files.fopen(tmp_path_fn, 'w+') as fp_:
            fp_.write(contents)
        data = salt.utils.templates.TEMPLATE_REGISTRY[template](tmp_path_fn, to_str=True, **kwargs)
        salt.utils.files.safe_rm(tmp_path_fn)
        if (not data['result']):
            raise CommandExecutionError('Failed    to    execute    cmd    with    error:    {0}'.format(data['data']))
        else:
            return data['data']
    cmd = _render(cmd)
    cwd = _render(cwd)
    return (cmd, cwd)