Range to Nullable conversion

[Antonio via Digitalmars-d-learn]

Is there any alternative to ***range front*** that returns a 
Nullable (i.e. **frontAsMonad** or **frontAsNullable**)?

I'm using Vibe.d and Nullable is the standard way to return an 
optional element:

```d
  @safe Nullable!Item getItem(int _id)
  {
    import std.algorithm : filter;

    with (items.filter!(item => item.id == _id))
    {
      if (empty)
        return Nullable!Item.init;
      else
        return front.nullable;
    }
  }
```

Can this code be written as a **simple** expression?  (without 
having to write helper methods).