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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 _POTUpdateBuilder(env, **kw):
 """ Creates `POTUpdate` builder object """

    import SCons.Action
    from SCons.Tool.GettextCommon import _POTargetFactory
    kw['action'] = SCons.Action.Action(_update_pot_file, None)
    kw['suffix'] = '$POTSUFFIX'
    kw['target_factory'] = _POTargetFactory(env, alias='$POTUPDATE_ALIAS').File
    kw['emitter'] = _pot_update_emitter
    return _POTBuilder(**kw)