{
  "$schema": "https://json-structure.org/draft-00/schema",
  "name": "FixerSymbolsResponse",
  "description": "JSON Structure for a Fixer symbols listing envelope.",
  "type": "object",
  "properties": {
    "success": { "type": "boolean" },
    "symbols": {
      "type": "map",
      "values": { "type": "string" }
    }
  },
  "required": ["success", "symbols"]
}