Get deletion operation

1. {
2. "operation": {
3. "id": string,
4. "type": "create" | "start" | "stop" | "delete" | "fork" | "archive" | …,
5. "status": "pending" | "succeeded" | "failed" | "uncertain",
6. "sandboxId": string | null,
7. "idempotencyKey": string | null,
8. "error": string | null,
9. … 2 more
10. },
11. "sandbox": object,
12. }

Deletion operation.