735637e3 - Previously, using sparse.todense on a BCSR matrix with sparse.sparsify would raise `NotImplementedError: sparse rule for todense is not implemented`. By adding the sparse rule, it will resolve this issue.
Previously, using sparse.todense on a BCSR matrix with sparse.sparsify would raise `NotImplementedError: sparse rule for todense is not implemented`. By adding the sparse rule, it will resolve this issue.
PiperOrigin-RevId: 551291543