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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 hsps(self):
 """ Get all HSPs for all the alignments for all titles. @return: A generator yielding L{dark.hsp.HSP} instances. """

        return (hsp for titleAlignments in self.values()
                for alignment in titleAlignments for hsp in alignment.hsps)