Get GPU instance

{
  "id": "<string>",
  "name": "<string>",
  "status": "<string>",
  "ip": "<string>",
  "instanceType": "<string>",
  "region": "<string>",
  "pricePerHour": "<string>",
  "gpu": "<string>",
  "specs": {},
  "startedAt": "<string>",
  "currentRuntimeSeconds": 123,
  "currentCost": "<string>",
  "createdAt": "<string>",
  "ssh": {
    "host": "<string>",
    "user": "<string>",
    "command": "<string>",
    "privateKey": "<string>",
    "instructions": "<array>"
  },
  "vaultMounts": {}
}