{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/PhoneNumber",
  "title": "PhoneNumber",
  "type": "object",
  "properties": {
    "number": {
      "type": "string",
      "example": "555-555-5555"
    },
    "extension": {
      "type": "string",
      "example": "1234"
    }
  }
}