code: def update_desc_rsib_path(desc,sibs_len):
      '''
          rightSibling
          nextSibling
          rightSib
          nextSib
          rsib
          nsib
          
          have the same parent,and on the right
      '''
      if(desc['sib_seq']<(sibs_len-1)):
          rsib_path = copy.deepcopy(desc['path'])
          rsib_path[-1] = desc['sib_seq']+1
          desc['rsib_path'] = rsib_path
      else:
          pass
      return(descf update_desc_rsib_path(desc,sibs_len):
      '''
          rightSibling
          nextSibling
          rightSib
          nextSib
          rsib
          nsib
          
          have the same parent,and on the right
      '''
      if(desc['sib_seq']<(sibs_len-1)):
          rsib_path = copy.deepcopy(desc['path'])
          rsib_path[-1] = desc['sib_seq']+1
          desc['rsib_path'] = rsib_path
      else:
          pass
      return(desc)
docs: rightSibling
          nextSibling
          rightSib
          nextSib
          rsib
          nsib
          
          have the same parent,and on the right