curl --request GET \
  --url http://localhost:8080/api/governance/routing-rules/{rule_id}

{
  "rule": {
    "scope": "global",
    "id": "<string>",
    "name": "<string>",
    "description": "<string>",
    "enabled": true,
    "cel_expression": "<string>",
    "provider": "<string>",
    "model": "<string>",
    "fallbacks": [
      "<string>"
    ],
    "scope_id": "<string>",
    "priority": 123,
    "query": {},
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z"
  }
}