toptal/chewy — pull request #101 by baronworks (2014-11-28 21:44:17+00:00)
Title: Field root id

Code and import specs to set the document id as part of the root object:

```ruby
define_type MyDoc do
root _id: -> { my_custom_id} do

end
end
```
Reference https://github.com/toptal/chewy/issues/99