code: def get_refined_structure(self):
          
          # Atomic positions have to be specified by scaled positions for spglib.
          lattice, scaled_positions, numbers \
              = spglib.refine_cell(self._cell, self._symprec, self._angle_tol)
  
          species = [self._unique_species[i - 1] for i in numbers]
          s = Structure(lattice, species, scaled_positions)
          return s.get_sorted_structure()
docs: Get the refined structure based on detected symmetry. The refined
          structure is a *conventional* cell setting with atoms moved to the
          expected symmetry positions.
  
          Returns:
              Refined structure.