docs: private String parseFirstArtistId(String json) {
      try {
        JsonNode jsonNode = this.objectMapper.readTree(json);
        for (JsonNode node : jsonNode.get("artists").get("items")) {
          return node.get("id").asText();
        }
      } catch (IOException e) {
        throw new RuntimeException("Failed to parse JSON", e);
      }
      return null;
    }