code: public ServiceFuture<List<SyncDatabaseIdPropertiesInner>> listSyncDatabaseIdsAsync(final String locationName, final ListOperationCallback<SyncDatabaseIdPropertiesInner> serviceCallback) {
          return AzureServiceFuture.fromPageResponse(
              listSyncDatabaseIdsSinglePageAsync(locationName),
              new Func1<String, Observable<ServiceResponse<Page<SyncDatabaseIdPropertiesInner>>>>() {
                  @Override
                  public Observable<ServiceResponse<Page<SyncDatabaseIdPropertiesInner>>> call(String nextPageLink) {
                      return listSyncDatabaseIdsNextSinglePageAsync(nextPageLink);
                  }
              },
              serviceCallback);
      }
docs: Gets a collection of sync database ids.
  
  @param locationName The name of the region where the resource is located.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object