React Hooks docs: add an useContext example where state is updated within a functional component

The React Hooks docs has in the useContext section an example where state is updated within a class component. How is this done within a functional component?

I did this example https://codesandbox.io/s/3vxr57vm7q but I am wondering if it is possible with less DRY, especially in index.js, lines 10-18:

  const [count, setCount] = useState(0)

  return (
    <Context.Provider
      value={{
        count: count,
        setCount: setCount
      }}
    >

With just one state property and one setState function it's ok but imagine you have five of those pairs, then you must repeat every one three times (eg.: count in useState, as key and as property in <Context.Provider />).

Hence, an example would be great and if I did it the right way.

React Hooks ドキュメントの useContext セクションから始め、リンクされている CodeSandbox と比較してください。特に index.js の 10～18 行を確認してください。完了条件は、セクションに、コンテキストの state を更新する方法を示す関数コンポーネントの例が含まれ、繰り返されている state と setter のプロパティを簡略化できるかどうかについても扱っていることです。