code: def get_dict_diff_str(d1, d2, title):
      
      added, removed, changed = get_dict_diff(d1, d2)
      lines = [title]
  
      if added:
          lines.append("Added attributes: %s"
                       % ['.'.join(x) for x in added])
      if removed:
          lines.append("Removed attributes: %s"
                       % ['.'.join(x) for x in removed])
      if changed:
          lines.append("Changed attributes: %s"
                       % ['.'.join(x) for x in changed])
  
      return '\n'.join(lines)
docs: Returns same as `get_dict_diff`, but as a readable string.