code: def display(self):
          
          def render(line):
              is_wide_char = False
              for x in range(self.columns):
                  if is_wide_char:  # Skip stub
                      is_wide_char = False
                      continue
                  char = line[x].data
                  assert sum(map(wcwidth, char[1:])) == 0
                  is_wide_char = wcwidth(char[0]) == 2
                  yield char
  
          return ["".join(render(self.buffer[y])) for y in range(self.lines)]
docs: A :func:`list` of screen lines as unicode strings.