default RegionAttributes beforeCreate(Region parent, String regionName, RegionAttributes attrs,
      InternalRegionArguments internalRegionArgs) {
    return attrs;
  }
Invoked before a region is created. This callback is allowed to modify the region attributes
before the region is created. Note that it's generally a bad idea to modify the
RegionAttributes in place; a new set of RegionAttributes should be returned that contain the
modifications. InternalRegionArguments *may* be modified, but only if you are sure the caller
is not going to reuse the InternalRegionArguments for something else.
geode-core/src/main/java/org/apache/geode/internal/cache/RegionListener.java