初学者的Elm Bootstrap手风琴秀

这是我的相关虚拟代码：

view : Model -> Html Msg
view model =
    div []
        [ basicAccordion model.accordionState
            "Dummy1"
            (div []
                [ text "Dummy Title",Button.button [ Button.secondary ] [ text "Hello World" ]
                ]
            )
            Nothing,structuredAccordion model.accordionState
            "Dummy2"
            ([ Card.titleH4 [] [ text "Another trial" ],Card.text [] [ text "Bye" ]
             ]
            )
            (Just ("id_dummy2"))
        ]

basicAccordion : Accordion.State -> String -> Html Msg -> Maybe String -> Maybe Bool -> Html Msg
basicAccordion state title content id collapsed =
    let
        singleCard =
            Card.custom <| content
    in
        structuredAccordion state title [ singleCard ] id collapsed


structuredAccordion : Accordion.State -> String -> List (Card.BlockItem Msg) -> Maybe String -> Maybe Bool -> Html Msg
structuredAccordion state title content id collapsed =
    Accordion.config Msgs.AccordionMsg
        |> Accordion.withAnimation
        |> Accordion.cards
            [ Accordion.card
                { id = (Maybe.withDefault title id),options = [],header =
                    Accordion.header [] <| Accordion.toggle [] [ text title ],blocks =
                    [ Accordion.block [] content
                    ]
                }
            ]
        |> Accordion.view state

这是问题所在：

>我想将Accordion内容显示为初始页面状态
>我发现bootstrap手风琴有一个默认设置,但是它与Bootstrap.Accordion暴露的可见性无关.

对我而言,这是一个非常基本的功能,我很惊讶它不是卡配置的一部分…希望我是一个没有注意到的东西.
任何的想法？

P.S.：第一篇文章,是仁慈的:)