{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "structure",
  "type": "object",
  "properties": {
    "rbicsId": {
      "type": "string",
      "description": "RBICS Code for the classification."
    },
    "firstDate": {
      "type": "string",
      "description": "First date of the classification."
    },
    "lastDate": {
      "type": "string",
      "description": "Date when the classification became no longer valid. If `null`, the classification is still valid."
    }
  }
}