public bool Delete(string value, string id)
        {
            HeldValue victim = this.Repo.Find((v) => v.name == value && v.ownerId == id);

            if (victim != null)
            {
                return(this.Repo.Remove(victim));
            }
            else
            {
                return(false);
            }
        }
        public void Create(string value, string id, string owner)
        {
            HeldValue newVal = new HeldValue(value, id, owner);

            this.Repo.Add(newVal);
        }