```http
PUT /collections/{collection_name}/points
{
    "points": [
        {
            "id": 1,
            "payload": {"group_id": "user_1"},
            "vector": [0.9, 0.1, 0.1]
        },
        {
            "id": 2,
            "payload": {"group_id": "user_1"},
            "vector": [0.1, 0.9, 0.1]
        },
        {
            "id": 3,
            "payload": {"group_id": "user_2"},
            "vector": [0.1, 0.1, 0.9]
        },
    ]
}
```