Module ActionController::Flash

    # File actionpack/lib/action_controller/metal/flash.rb, line 12
12:       def redirect_to(options = {}, response_status_and_flash = {}) #:doc:
13:         if alert = response_status_and_flash.delete(:alert)
14:           flash[:alert] = alert
15:         end
16: 
17:         if notice = response_status_and_flash.delete(:notice)
18:           flash[:notice] = notice
19:         end
20: 
21:         if other_flashes = response_status_and_flash.delete(:flash)
22:           flash.update(other_flashes)
23:         end
24: 
25:         super(options, response_status_and_flash)
26:       end