25-ventures/trepscore-services — pull request #31 by ryanfaerman (2014-10-13 14:20:57+00:00)
Title: Value discovery

Provide a mechanism to inquire about possible values for schema items. The documentation is inline, but's pretty simple to use from the integration perspective.

```ruby
class SomeService < Service
required do
string :group
end

def groups
...
end
end
```