code: protected void configureFoursquareClient(final Collection<BaseClient> properties) {
          val foursquare = pac4jProperties.getFoursquare();
          if (StringUtils.isNotBlank(foursquare.getId()) && StringUtils.isNotBlank(foursquare.getSecret())) {
              val client = new FoursquareClient(foursquare.getId(), foursquare.getSecret());
              configureClient(client, foursquare);
  
              LOGGER.debug("Created client [{}] with identifier [{}]", client.getName(), client.getKey());
              properties.add(client);
          }
      }
docs: Configure foursquare client.
  
  @param properties the properties