public static void validateRegionSizeOnly_PDX(String regionName, final int regionSize) {
    final Region<?, ?> r = cache.getRegion(SEPARATOR + regionName);
    await()
        .untilAsserted(
            () -> assertThat((regionSize <= r.keySet().size())).as(
                "Expected region entries: " + regionSize + " but actual entries: "
                    + r.keySet().size() + " present region keyset " + r.keySet())
                .isEqualTo(true));
  }
To be used only for ParallelGatewaySender.

@param senderId Id of the ParallelGatewaySender
geode-wan/src/distributedTest/java/org/apache/geode/internal/cache/wan/WANTestBase.java