public FileGroup GetGroup(string groupName)
        {
            var root       = shareClient.GetRootDirectoryClient();
            var fm36Folder = root.GetSubdirectoryClient(groupName);
            var fileGroup  = new FileGroup {
                Name = fm36Folder.Name
            };
            var fm36Files = fm36Folder.GetFilesAndDirectories();

            foreach (var fm36File in fm36Files)
            {
                if (fm36File.IsDirectory)
                {
                    continue;
                }
                fileGroup.Files.Add(Fm36File.Parse(fm36File.Name));
            }

            return(fileGroup);
        }