code: public ServiceFuture<List<SyncAgentLinkedDatabaseInner>> listLinkedDatabasesAsync(final String resourceGroupName, final String serverName, final String syncAgentName, final ListOperationCallback<SyncAgentLinkedDatabaseInner> serviceCallback) {
          return AzureServiceFuture.fromPageResponse(
              listLinkedDatabasesSinglePageAsync(resourceGroupName, serverName, syncAgentName),
              new Func1<String, Observable<ServiceResponse<Page<SyncAgentLinkedDatabaseInner>>>>() {
                  @Override
                  public Observable<ServiceResponse<Page<SyncAgentLinkedDatabaseInner>>> call(String nextPageLink) {
                      return listLinkedDatabasesNextSinglePageAsync(nextPageLink);
                  }
              },
              serviceCallback);
      }
docs: Lists databases linked to a sync agent.
  
  @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value from the Azure Resource Manager API or the portal.
  @param serverName The name of the server on which the sync agent is hosted.
  @param syncAgentName The name of the sync agent.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object