code: public ServiceFuture<Void> addUsersAsync(String resourceGroupName, String labAccountName, String labName, List<String> emailAddresses, final ServiceCallback<Void> serviceCallback) {
          return ServiceFuture.fromResponse(addUsersWithServiceResponseAsync(resourceGroupName, labAccountName, labName, emailAddresses), serviceCallback);
      }
docs: Add users to a lab.
  
  @param resourceGroupName The name of the resource group.
  @param labAccountName The name of the lab Account.
  @param labName The name of the lab.
  @param emailAddresses List of user emails addresses to add to the lab.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object