public void Deallocate()
{
if (_folderLease == null) return;
var lease = _folderLease;
_folderLease = null;
lease.Release();
LeasedOut = false;
}
public async Task<ILease> Lease(IAllocator allocator, Specification spec)
{
LeasedOut = true;
_folderLease = new FolderLease(this, Directory);
return _folderLease;
}