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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 get_taskfileinfo_selection(self, ):
 """Return a taskfileinfo that the user chose from the available options :returns: the chosen taskfileinfo :rtype: :class:`jukeboxcore.filesys.TaskFileInfo` :raises: None """

        sel = OptionSelector(self.reftrack)
        sel.exec_()
        return sel.selected