old_contents: __all__ = ["client",
             "cmdline",
             "common",
             "data",
             "iplugin",
             "pluginrunner",
             "simulator",
             "transport",
             "version", ]
  
  from client import Client
  from cmdline import ArgError, CmdLine
  from common import Error, Info, SocketEOF, LsmError, ErrorLevel, ErrorNumber, \
      JobStatus
  from data import DataEncoder, DataDecoder, IData, Initiator, Volume, Pool, \
      FileSystem, Snapshot, NfsExport, BlockRange, AccessGroup
  from iplugin import IPlugin, IStorageAreaNetwork, INetworkAttachedStorage, INfs
  
  from pluginrunner import PluginRunner
  from simulator import SimPlugin
  from simarray import SimData, SimJob, SimArray
  from transport import Transport
  from version import VERSION
  
new_contents: __all__ = ["client",
             "cmdline",
             "common",
             "data",
             "iplugin",
             "pluginrunner",
             "simulator",
             "transport",
             "version", ]
  
  from client import Client
  from cmdline import ArgError, CmdLine
  from common import Error, Info, SocketEOF, LsmError, ErrorLevel, ErrorNumber, \
      JobStatus
  from data import DataEncoder, DataDecoder, IData, Initiator, Disk, Volume, Pool, \
      System, FileSystem, Snapshot, NfsExport, BlockRange, AccessGroup, OptionalData
  from iplugin import IPlugin, IStorageAreaNetwork, INetworkAttachedStorage, INfs
  
  from pluginrunner import PluginRunner
  from simulator import SimPlugin
  from simarray import SimData, SimJob, SimArray
  from transport import Transport
  from version import VERSION
  
subject: Add the omitted classes