// Generate an SMHCollectionFuture example
Context context;
SMHCollectionFuture smh = new SMHCollection(
        context,
        new MySMHSimpleUser()
).future();

//Get directory list
CompletableFuture<DirectoryContents> cf = smh.list(1, 50);
//Block and get result
// try {
//     DirectoryContents directoryContents = cf.get();
// } catch (Throwable e){
//     e.printStackTrace();
// }

//Asynchronously fetch result
// If execution successful:
cf.thenApply((result) -> {
    DirectoryContents directoryContents = result;
    return result;
});
// If execution exception:
cf.exceptionally((e) -> {
    e.printStackTrace();
    return null;
});