@NonNull
    public static <T> List<TtlCallable<T>> gets(@Nullable Collection<? extends Callable<T>> tasks) {
        return gets(tasks, false, false);
    }
wrap input {@link Callable} Collection to {@link TtlCallable} Collection.

@param tasks task to be wrapped
@return Wrapped {@link Callable}
ttl-core/src/main/java/com/alibaba/ttl3/TtlCallable.java