Uncaught TypeError: router.push is not a function

import {defineComponent} from 'vue'

import {useRoute} from 'vue-router'

export default defineComponent({

    name: 'Start',

    setup(){

        let router = useRoute()

        let start = () => {

            router.push({

                path: '/home'

            })

        }

        return{

            start

        }

    }

})