typescript 数组插入对象问题

<el-button type = "text" @click="addImage"><el-icon><Plus /></el-icon>添加图片</el-button>

定义了：

interface Model {
    name: string;
    img: object[] 
}
const model = ref<Model>({
    name: '',
    img: [{}],

});

const addImage = () => {
      model.value.img.push({'img':'baidu.com'});
    };

点按钮提示“TypeError: Cannot read properties of undefined (reading 'push') at addImage”

先检查一下点击按钮的时候是否正确获取到model.value.img的数据，一般是数据发生错误