code: def reset_query_marks(self):
          
          for i, atom in self.atoms():
              neighbors = 0
              hybridization = 1
              # hybridization 1- sp3; 2- sp2; 3- sp1; 4- aromatic
              for j, bond in self._adj[i].items():
                  if self._node[j].element != 'H':
                      neighbors += 1
  
                  if hybridization in (3, 4):
                      continue
                  order = bond.order
                  if order == 4:
                      hybridization = 4
                  elif order == 3:
                      hybridization = 3
                  elif order == 2:
                      if hybridization == 2:
                          hybridization = 3
                      else:
                          hybridization = 2
  
              atom._neighbors = neighbors
              atom._hybridization = hybridization
          self.flush_cache()
docs: set or reset hyb and neighbors marks to atoms.