public static void createSender(String dsName, int remoteDsId, boolean isParallel,
      Integer maxMemory, Integer batchSize, boolean isConflation, boolean isPersistent,
      GatewayEventFilter filter, boolean isManualStart) {
    createSender(dsName, remoteDsId, isParallel, maxMemory, batchSize, isConflation, isPersistent,
        filter, isManualStart, false);
  }
Returns a Map that contains the count for number of cache server and number of Receivers.
geode-wan/src/distributedTest/java/org/apache/geode/internal/cache/wan/WANTestBase.java