private static function getBolClient()
{
if (!self::$bolClient) {
$bol_api_key = '2C42709CDE6B4AF49B874E38CF1DFD12';
$bol_api_format = 'json';
$bol_api_debug_mode = 0;
$bol_api_library_version = 'v.2.0.0';
self::$bolClient = new Client($bol_api_key, $bol_api_format, $bol_api_debug_mode);
}
return self::$bolClient;
}
