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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 _fix_mappings(self):
 """ Add computed stuff to mappings. """

        self._mapping.update((key+'=', val+'=') for key, val in self._mapping.items() if not key.endswith('='))

        if config.debug:
            self.LOG.debug("CMD MAPPINGS ARE: %r" % (self._mapping,))