code: def diff_text2(self, diffs):
      
      text = []
      for (op, data) in diffs:
        if op != self.DIFF_DELETE:
          text.append(data)
      return "".join(text)
docs: Compute and return the destination text (all equalities and insertions).
  
      Args:
        diffs: Array of diff tuples.
  
      Returns:
        Destination text.