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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _POUpdateBuilder(env, **kw):
 """ Create an object of `POUpdate` builder """

  import SCons.Action
  from SCons.Tool.GettextCommon import _POFileBuilder
  action = SCons.Action.Action(_update_or_init_po_files, None)
  return _POFileBuilder(env, action=action, target_alias='$POUPDATE_ALIAS')