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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 builds(self, request, pk=None):
 """ List of builds for the current project. """

        builds = self.get_object().builds.prefetch_related('test_runs').order_by('-datetime')
        page = self.paginate_queryset(builds)
        serializer = BuildSerializer(page, many=True, context={'request': request})
        return self.get_paginated_response(serializer.data)