code: public static base_responses update(nitro_service client, dbuser resources[]) throws Exception {
  		base_responses result = null;
  		if (resources != null && resources.length > 0) {
  			dbuser updateresources[] = new dbuser[resources.length];
  			for (int i=0;i<resources.length;i++){
  				updateresources[i] = new dbuser();
  				updateresources[i].username = resources[i].username;
  				updateresources[i].password = resources[i].password;
  			}
  			result = update_bulk_request(client, updateresources);
  		}
  		return result;
  	}
docs: Use this API to update dbuser resources.