модуль ActionController

# File actionpack/lib/action_controller/metal/renderers.rb, line 7
def self.add_renderer(key, &block)
  Renderers.add(key, &block)
end

# File actionpack/lib/action_controller/metal/renderers.rb, line 12
def self.remove_renderer(key)
  Renderers.remove(key)
end