def _get_librato(ret=None):
    '''
    Return a Librato connection object.
    '''
    _options = _get_options(ret)

    conn = librato.connect(
        _options.get('email'),
        _options.get('api_token'),
        sanitizer=librato.sanitize_metric_name,
        hostname=_options.get('api_url'))
    log.info("Connected to librato.")
    return conn
Return a Librato connection object.