public Task <IFunctionIndex> GetAsync(CancellationToken cancellationToken)
        {
            IFunctionIndex index = new EmptyFunctionIndex();

            return(Task.FromResult(index));
        }
 public Task<IFunctionIndex> GetAsync(CancellationToken cancellationToken)
 {
     IFunctionIndex index = new EmptyFunctionIndex();
     return Task.FromResult(index);
 }