```ruby
class Webmail::Extensions::ImapSettings < Array
  def mongoize
    self.to_a.map(&:to_h)
  end

  class << self
    def demongoize(object)
      object = object.to_a.map do |h|
        Webmail::ImapSetting.new.replace(h.symbolize_keys)
      end
      self.new(object)
    end

    def mongoize(object)
      case object
        when self.class
          object.mongoize
        when Array
          self.new(object).mongoize
        else
        object
      end
    end

    def evolve(object)
      case object
      when self.class then object.mongoize
      else
        object
      end
    end
  end
end
```

Indent when as deep as case.
user
```ruby
class Webmail::Extensions::ImapSettings < Array
  def mongoize
    self.to_a.map(&:to_h)
  end

  class << self
    def demongoize(object)
      object = object.to_a.map do |h|
        Webmail::ImapSetting.new.replace(h.symbolize_keys)
      end
      self.new(object)
    end

    def mongoize(object)
      case object
      when self.class
        object.mongoize
      when Array
        self.new(object).mongoize
      else
        object
      end
    end

    def evolve(object)
      case object
      when self.class then object.mongoize
      else
        object
      end
    end
  end
end
```
assistant