Get Usage Summary

{
  "items": [
    {
      "user_id": "string",
      "total_exec_count": 0,
      "total_exec_ms": 0,
      "total_bytes_uploaded": 0,
      "total_bytes_downloaded": 0,
      "sandbox_count": 0
    }
  ],
  "period_start": "string",
  "period_end": "string"
}

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