/**
* return property of currency
* @example ->getSymbol(); ->getSymbol('usd');
* @param string $name
* @param strong $args
* @return mixed
*/
public function __call($name, $args)
{
$n = \strtolower(\substr($name, 3));
if ($this->download->getProperty($n)) {
return $this->getCurrency(!isset($args[0]) ? $this->key : $args[0], $n);
}
throw new ExchangeException('Call undefined method ' . $name);
}