def _LDLdecomposition(self):
        D = zeros(self.rows, self.rows)
        L = eye(self.rows)
        for i in range(self.rows):
            for j in range(i):
                L[i, j] = (1 / D[j, j])*(self[i, j] - sum(
                    L[i, k]*L[j, k]*D[k, k] for k in range(j)))
            D[i, i] = self[i, i] - sum(L[i, k]**2*D[k, k]
                for k in range(i))
        return self._new(L), self._new(D)
Ensure the result has a 'user' key since that is the name of the model
dataset/ETHPy150Open sympy/sympy/sympy/matrices/dense.py/DenseMatrix._LDLdecomposition--crossover with--dataset/ETHPy150Open django-json-api/django-rest-framework-json-api/example/tests/test_model_viewsets.py/ModelViewSetTests.test_key_in_list_result