```ruby
require 'rubygems'
gem 'rspec', '>=1.2.9'
require 'spec'

require 'yard'

include YARD
```

Make sure to require yard >= 0.4.0.
user
```ruby
require 'rubygems'
gem 'rspec', '>=1.2.9'
require 'spec'

gem 'yard', '>=0.4.0'
require 'yard'

include YARD
```
assistant