_define_around_model_callback

# File activemodel/lib/active_model/callbacks.rb, line 115
    def _define_around_model_callback(klass, callback) #:nodoc:
      klass.class_eval         def self.around_#{callback}(*args, &block)          set_callback(:#{callback}, :around, *args, &block)        end, __FILE__, __LINE__ + 1
    end