```ruby
module FReCon
	class Model
		include Mongoid::Document
		include Mongoid::Timestamps
		include Mongoid::Attributes::Dynamic
	end
end
```

Redefine method ID to return string
user
```ruby
module FReCon
	class Model
		include Mongoid::Document
		include Mongoid::Timestamps
		include Mongoid::Attributes::Dynamic

		def id
			self._id.to_s
		end
	end
end
```
assistant