old_contents: from metadatastore.mds import MDSRO
  from portable_mds.mongoquery.mds import MDS
  
  
  source_config = {'host': 'localhost',
                   'port': 27017,
                   'database': 'metadatastore_production_v1',
                   'timezone': 'US/Eastern'}
  dest_config = {'directory': 'some_directory'}
  
  source = MDSRO(source_config)
  dest = MDS(dest_config)
  
  for run_start in source.find_run_starts():
      dest.insert_run_start(**run_start)
      for desc in source.find_descriptors(run_start=run_start):
          events = source.get_events_generator(descriptor=desc)
          dest.insert_descriptor(**desc)
          dest.bulk_insert_events(desc, events)
      dest.insert_run_stop(**source.stop_by_start(run_start))
  
new_contents: from metadatastore.mds import MDSRO
  from portable_mds.mongoquery.mds import MDS
  
  
  source_config = {'host': 'localhost',
                   'port': 27017,
                   'database': 'metadatastore_production_v1',
                   'timezone': 'US/Eastern'}
  dest_config = {'directory': 'some_directory',
                 'timezone': 'US/Eastern'}
  
  source = MDSRO(source_config)
  dest = MDS(dest_config)
  
  for run_start in source.find_run_starts():
      dest.insert_run_start(**run_start)
      for desc in source.find_descriptors(run_start=run_start):
          events = source.get_events_generator(descriptor=desc)
          dest.insert_descriptor(**desc)
          dest.bulk_insert_events(desc, events)
      dest.insert_run_stop(**source.stop_by_start(run_start))
  
subject: Add timezone to example to keep Broker happy.