想问一下ruby grape里以下的present,with,type都是什么意思？看了小半天也没懂。谢谢。

module API
  class Statuses < Grape::API
    version 'v1'

    desc 'Statuses.', {
      params: API::Entities::Status.documentation
    }
    get '/statuses' do
      statuses = Status.all
      type = current_user.admin? ? :full : :default
      present statuses, with: API::Entities::Status, type: type
    end
  end
end

文档地址：https://github.com/intridea/grape-entity/blob/master/README.md