BlobHierarchyItem
namespace Azure.Storage.Blobs.Models
{
    public class BlobHierarchyItem
    {
        public string Prefix { get; set; }
        public BlobItem Blob { get; set; }
        public bool IsPrefix => Prefix != null;
        public bool IsBlob => Blob != null;
        internal BlobHierarchyItem(string prefix, BlobItem blob)
        {
            Prefix = prefix;
            Blob = blob;
        }
    }
}