{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/Identification",
  "title": "Identification",
  "type": "object",
  "properties": {
    "user_id": {
      "type": "string",
      "description": "A readable ID specified by you. Required unless device_id is present."
    },
    "device_id": {
      "type": "string",
      "description": "A device-specific identifier. Required unless user_id is present."
    },
    "user_properties": {
      "$ref": "#/components/schemas/UserPropertyOperations"
    }
  }
}