private void initializeRegions(final RegionShortcut shortcut, final boolean overflow) {
    // arrange: create regions and data
    vm0.invoke(() -> createRegion(shortcut, overflow));
    vm0.invoke(this::loadRegion);
    vm1.invoke(() -> createRegion(shortcut, overflow));
  }
Initialize region on the distributed members.

@param shortcut The region shortcut to use to create the region.
@param overflow If true, use overflow on the region, false otherwise.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/partitioned/BucketRebalanceStatRegressionTest.java