curl --request PUT \
  --url https://{api_endpoint}/api/v1/model_policy/{model_policy_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "display_name": "<string>",
  "policy": {
    "strategy": {
      "mode": "loadbalance",
      "on_status_codes": [
        123
      ]
    },
    "targets": [
      {
        "model_name": "<string>",
        "weight": 123
      }
    ],
    "cache": {
      "mode": "<string>"
    },
    "retry": {
      "attempts": 123,
      "on_status_codes": [
        123
      ]
    }
  },
  "description": "<string>"
}
'

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>"
    }
  ]
}