{
  "connection": {
    "client_id": "string",
    "versions": [
      {
        "identifier": "string",
        "features": [
          "string"
        ]
      }
    ],
    "state": "STATE_UNINITIALIZED_UNSPECIFIED",
    "counterparty": {
      "client_id": "string",
      "connection_id": "string",
      "prefix": {
        "key_prefix": "string"
      }
    },
    "delay_period": "string"
  },
  "proof": "string",
  "proof_height": {
    "revision_number": "string",
    "revision_height": "string"
  }
}

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