{
  "epochs": [
    {
      "identifier": "string",
      "start_time": "2019-08-24T14:15:22Z",
      "duration": "string",
      "current_epoch": "string",
      "current_epoch_start_time": "2019-08-24T14:15:22Z",
      "epoch_counting_started": true,
      "current_epoch_start_height": "string"
    }
  ]
}

{
  "error": "string",
  "code": 0,
  "message": "string",
  "details": [
    {
      "type_url": "string",
      "value": "string"
    }
  ]
}