请以json形式回答，提供一个拥有3间卧室、2间浴室的公寓的详细信息，包括每个房间的面积，必须使用平方米。
user
```json
{
  "apartment": {
    "bedrooms": [
      {
        "roomNumber": 1,
        "area": "15 m²"
      },
      {
        "roomNumber": 2,
        "area": "18 m²"
      },
      {
        "roomNumber": 3,
        "area": "20 m²"
      }
    ],
    "bathrooms": [
      {
        "roomNumber": 1,
        "area": "8 m²"
      },
      {
        "roomNumber": 2,
        "area": "10 m²"
      }
    ]
  }
}
```
assistant