public function __construct($options = array())
{
$this->required_options('login, password, client_id', $options);
if (isset($options['currency'])) {
self::$default_currency = $options['currency'];
}
$this->options = $options;
$mode = $this->mode();
if ($mode == 'live') {
$this->payment_mode = 'P';
}
#Production mode
}
