ms-ati/rumonade — comment on commit ec5b9da8a16803d7ce242a3bf5b5ee4877889795
File: README.rdoc line 34
By AlexBaranosky:

Something like this where you have a possible associated object, that, if you have it, you want to get some value from it, otherwise just returning None

```ruby
def associated_entitys_name
Option("1234abcd").flat_map { |id| repo.lookup(id) }.map { |entity| entity.name }
end
```