def run_callbacks(action_name, &block)
      filter_callbacks(:before, action_name).each { |hook| send hook[:callback] }
      yield if block_given?
      filter_callbacks(:after, action_name).each { |hook| send hook[:callback] }
    end
def run_callbacks(action_name, &block)
      filter_callbacks(:before, action_name).each { |hook| send hook[:callback] }
      yield if block_given?
      filter_callbacks(:after, action_name).each { |hook| send hook[:callback] }
    end
Run all callbacks associated with this action

 @apram [Symbol] action_name

 @api private