lib/Model/CreateChargeRequest.php
public function setCurrency($currency)
    {
        $allowed_values = array('AUD', 'NZD');
        if ((!in_array($currency, $allowed_values))) {
            throw new \InvalidArgumentException("Invalid value for 'currency', must be one of 'AUD', 'NZD'");
        }
        $this->container['currency'] = $currency;

        return $this;
    }
public function setCurrency($currency)
    {
        $allowed_values = array('AUD', 'NZD');
        if ((!in_array($currency, $allowed_values))) {
            throw new \InvalidArgumentException("Invalid value for 'currency', must be one of 'AUD', 'NZD'");
        }
        $this->container['currency'] = $currency;

        return $this;
    }
Sets currency
@param string $currency The currency
@return $this