```ruby
module Rabl
  class Railtie < Rails::Railtie
    initializer "rabl.initialize" do |app|
      # Force Rails to load view templates even in API mode
      # Stolen shamelessly from jbuilder: https://github.com/rails/jbuilder/blob/master/lib/jbuilder/railtie.rb
      if Rails::VERSION::MAJOR >= 5
        module ::ActionController
          module ApiRendering
            include ActionView::Rendering
          end
        end

        ActiveSupport.on_load :action_controller_api do
          include ActionController::Helpers
          include ActionController::ImplicitRender
        end
      end

      ActiveSupport.on_load(:action_view) do
        Rabl.register!

        # Inject dependency tracker for :rabl
        if Rails.version =~ /^[4567]/
          require 'action_view/dependency_tracker'
          ActionView::DependencyTracker.register_tracker :rabl, Rabl::Tracker
        end
      end
    end
  end # Railtie
end # Rabl
```

Revert "Avoid loading `ActionController::API` constant"
user
```ruby
module Rabl
  class Railtie < Rails::Railtie
    initializer "rabl.initialize" do |app|
      # Force Rails to load view templates even in API mode
      # Stolen shamelessly from jbuilder: https://github.com/rails/jbuilder/blob/master/lib/jbuilder/railtie.rb
      if Rails::VERSION::MAJOR >= 5
        module ::ActionController
          module ApiRendering
            include ActionView::Rendering
          end
        end

        ActiveSupport.on_load :action_controller do
          if self == ActionController::API
            include ActionController::Helpers
            include ActionController::ImplicitRender
          end
        end
      end

      ActiveSupport.on_load(:action_view) do
        Rabl.register!

        # Inject dependency tracker for :rabl
        if Rails.version =~ /^[4567]/
          require 'action_view/dependency_tracker'
          ActionView::DependencyTracker.register_tracker :rabl, Rabl::Tracker
        end
      end
    end
  end # Railtie
end # Rabl
```
assistant