{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://astrocollabapi.com/schemas/HelloRequest.schema.json",
  "title": "HelloRequest",
  "type": "object",
  "properties": {
    "protocol": {
      "type": "integer",
      "format": "int32",
      "description": "The protocol the program speaks.",
      "default": 1
    },
    "profile": {
      "$ref": "RigProfile.schema.json"
    },
    "presence": {
      "anyOf": [
        {
          "$ref": "Presence.schema.json"
        },
        {
          "type": "null"
        }
      ],
      "description": "Where the telescope points, for the others' charts. Optional."
    }
  }
}