code: def add(self, dic):
          '''adds a dict as pair
  
          Args:
              dic (dict): key and value
          '''
          for kw in dic:
              checkKey(kw, self.keyWord)
              self._add([Pair(kw, StringSingle(dic[kw]))], self.df add(self, dic):
          '''adds a dict as pair
  
          Args:
              dic (dict): key and value
          '''
          for kw in dic:
              checkKey(kw, self.keyWord)
              self._add([Pair(kw, StringSingle(dic[kw]))], self.d)
docs: adds a dict as pair
  
          Args:
              dic (dict): key and value