Lists all instance groups in the project and returns their details.

Example response

{
  "items": [
    {
      "active_instances": [
        "066ce497-889e-4899-b53e-400df3fb7c0e"
      ],
      "created_at": "2024-01-01T00:00:00Z",
      "desired_count": 3,
      "id": "ab4a6b00-aa5f-408e-a9fb-ac6de5eb45ab",
      "inactive_instances": [
        "066ce497-889e-4899-b53e-400df3fb7c0e"
      ],
      "instances": [
        "066ce497-889e-4899-b53e-400df3fb7c0e"
      ],
      "name": "my-instance-group",
      "project_id": "b67aec22-2908-4427-994c-4e32be87477e",
      "running_instance_count": 3,
      "state": "HEALTHY",
      "template_id": "7e6a6c5a-1314-409a-9e4f-3cc9f2a68fcc",
      "updated_at": "2024-01-01T00:00:00Z"
    }
  ]
}