Method sleep

java/lib/src/main/java/io/github/ccxt/Exchange.java:1209–1224

(Object milliseconds)

    // }
    // ----- END OF WRAPPERS ----- //
    public CompletableFuture<Object> sleep(Object milliseconds) {
        long ms;
        if (milliseconds instanceof Integer) {
            ms = ((Integer) milliseconds).longValue();
        } else if (milliseconds instanceof Long) {
            ms = (Long) milliseconds;
        } else if (milliseconds instanceof String) {
            ms = Long.valueOf((String) milliseconds);
        } else if (milliseconds instanceof Double) {
            ms = ((Double) milliseconds).longValue();
        } else {
            throw new IllegalArgumentException("milliseconds must be Integer, Long, Double, or String");
        }
        return CompletableFuture.supplyAsync(() -> null,
                CompletableFuture.delayedExecutor(ms, java.util.concurrent.TimeUnit.MILLISECONDS));
    }

    public HashMap<String, Object> createSafeDictionary() {
        return new HashMap<>();