private Optional<RegionInfo> getMetaRegionInfoIfToBeMoved(List<RegionInfo> regionsToMove) {
    return regionsToMove.stream().filter(RegionInfo::isMetaRegion).findFirst();
  }
Loads the specified {@link #hostname} with regions listed in the {@link #filename} RegionMover
Object has to be created using {@link #RegionMover(RegionMoverBuilder)}
@return true if loading succeeded, false otherwise
hbase-server/src/main/java/org/apache/hadoop/hbase/util/RegionMover.java