code: def get_tag_values(self, tags, columns):
          
          tag_values = []
          i = 0
          while i < len(columns):
              tag_key = columns[i]
              if tag_key in tags:
                  tag_values.append(tags.get(tag_key))
              else:
                  tag_values.append(None)
              i += 1
          return tag_values
docs: function to get the tag values from tags and columns