code: public com.cloudant.client.api.model.Response update(Object object, int writeQuorum) {
          Response couchDbResponse = client.couchDbClient.put(getDBUri(), object, false, writeQuorum);
          com.cloudant.client.api.model.Response response = new com.cloudant.client.api.model
                  .Response(couchDbResponse);
          return response;
      }
docs: Updates an object in the database similarly to {@link #update(Object)}, but specifying the
  write quorum.
  
  @param object      the object to update
  @param writeQuorum the write quorum
  @return {@link com.cloudant.client.api.model.Response}
  @throws DocumentConflictException if a conflict is detected during the update.
  @see Database#update(Object)
  @see <a
  href="https://console.bluemix.net/docs/services/Cloudant/api/document.html#quorum-writing-and-reading-data"
  target="_blank">Documents - quorum</a>