docs: public CoinbaseContacts getCoinbaseContacts(
        Integer page, final Integer limit, final String filter) throws IOException {
  
      final CoinbaseContacts contacts =
          coinbase.getContacts(
              page,
              limit,
              filter,
              exchange.getExchangeSpecification().getApiKey(),
              signatureCreator,
              exchange.getNonceFactory());
      return contacts;
    }