vibeqc.shell_pair_orbits¶ vibeqc.shell_pair_orbits(basis, plan)[source]¶ Partition intrinsic-unique primitive shell pairs by point symmetry. Parameters: basis (vibeqc._vibeqc_core.BasisSet) plan (AICCM2026DevBSymmetryPlan) Return type: tuple[tuple[tuple[int, int], …], …]