Mongo EF Core provider supports index creation?

Does the Mongo EF Core provider support index creation? For simple model creation like:

protected override void OnModelCreating(ModelBuilder modelBuilder)
{
  base.OnModelCreating(modelBuilder);
  modelBuilder.Entity<Invoice>()
    .ToCollection("invoices")
    .HasIndex(i => i.Name);
}
`
...  I would have expected an index to be created. It is not. I don't see any mention of indexes in the EF Core Provider features/limitations list.