create a vuejs component that uses defineexpose in typescript

In a Vue.js component, we can use defineExpose to expose properties and methods to the parent component. In TypeScript, we need to declare the component props and methods to ensure type-safety. Here's an example of how to create a Vue.js component using defineExpose in TypeScript:

<template>
  <div>{{ message }}</div>
</template>

<script lang="ts">
import { defineComponent, defineExpose } from 'vue'

export default defineComponent({
  props: {
    text: {
      type: String,
      required: true
    }
  },
  setup(props) {
    const message = `Hello, ${props.text}!`

    const sayHello = () => {
      console.log(message)
    }

    // Expose properties and methods to the parent component
    defineExpose({
      message,
      sayHello
    })

    return {
      message,
      sayHello
    }
  }
})
</script>
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In this example, we declare a props object with a required text property of type String. In the setup function, we define a message variable that uses the text prop, and a sayHello method that logs the message to the console. We then use defineExpose to expose the message and sayHello properties to the parent component. Finally, we return the message and sayHello properties from the setup function.

Note that we also use the defineComponent function from Vue.js to create our component. defineComponent allows us to provide a type for our component props and ensure type-safety throughout our component.