here are two problems. The Decorator address is not a base type, such as an object and attributes that you must use Mixin or Attachment .
FORMAT: 1A
HOST: http://test.com/
# API Blueprint testing.
## Resource [/resources]
### Action [GET]
+ Response 200 (application/json)
+ Attributes
+ Include AddressDecorator
# Data Structures
## Person (object)
+ first_name
+ last_name
## AddressDecorator (object)
+ address
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