How does mint-ui 's navbar register events to get the current clicks?

according to the navbar instance on the official website of mint-ui, api does not specify how to register the event. https://codeshelper.com/q/10.

<mt-navbar v-model="selected" @click="mtTab">
    <mt-tab-item id="1">1</mt-tab-item>
    <mt-tab-item id="2">2</mt-tab-item>
    <mt-tab-item id="3">3</mt-tab-item>
</mt-navbar>

<!-- tab-container -->
<mt-tab-container v-model="selected">
    <mt-tab-container-item id="1">1</mt-tab-container-item>
    <mt-tab-container-item id="2">2</mt-tab-container-item>
    <mt-tab-container-item id="3">3</mt-tab-container-item>
</mt-tab-container>

data() {
    return {
        selected: "1"
    }
},
methods: {
    // 
    mtTab() {
        console.log("1111")
    }
}
Dec.20,2021

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v-model

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