Hello,
This is an iteration after first work at https://github.com/vercel/next.js/pull/36478.
What that PR missed is a way to just get a cookie value. Well, this PR adds two new things:
`cookies.get` returns the cookie value that could be `string | undefined`:
```js
const response = new NextResponse()
response.cookies.set('foo', 'bar', { path: '/test' })
const value = response.cookies.get('foo')
console.log(value) // => 'bar'
```
Additionally, if you want to know all the cookie details, you can use `cookies.getWithOptions`:
```js
const response = new NextResponse()
response.cookies.set('foo', 'bar', { path: '/test' })
const { value, options } response.cookies.getWithOptions('foo')
console.log(value) // => 'bar'
console.log(options) // => { Path: '/test' }
```
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