code: def write_indented_block(self, block):
          
          self.in_indent_lines = False
          for l in re.split(r'\r?\n', block):
              self.line_buffer.append(l)
              self._update_lineno(1)
docs: print a line or lines of python which already contain indentation.
  
          The indentation of the total block of lines will be adjusted to that of
          the current indent level.