Method safeTimestamp2

java/lib/src/main/java/io/github/ccxt/Exchange.java:1052–1054

(Object obj, Object key1, Object key2, Object... defaultValue)

    }

    public Object safeTimestamp2(Object obj, Object key1, Object key2, Object... defaultValue) {
        return SafeMethods.safeTimestamp2(obj, key1, key2, defaultValue);
    }

    public Object safeTimestampN(Object obj, List<Object> keys, Object... defaultValue) {
        return SafeMethods.safeTimestampN(obj, keys, defaultValue);