the use of iview, in which I want to register the component with a upload upload button, but with the render function, I can"t write. I haven"t written it after trying for a long time. Boss, take a look at it

{
align: "center",
title: "",
render: (h, params) => {
    return h("div", [
        h("Upload", {
            props: {
              action: "/train/",
            },
        },""),
    ])
}w
},

I don"t know how to write this upload component. The upload component is linked as follows: https://www.iviewui.com/compo.,
Boss, come and have a look at