code: def t_INITIAL_NEWLINE(self, newline_token):
          r'\n+'
          newline_token.lexer.lineno += newline_token.value.count('\n')
          dent_tokens = self._create_tokens_for_next_line_dent(newline_token)
          if dent_tokens:
              dent_tokens.tokens.insert(0, newline_token)
              return dent_tokens
          else:
              return newline_tokef t_INITIAL_NEWLINE(self, newline_token):
          r'\n+'
          newline_token.lexer.lineno += newline_token.value.count('\n')
          dent_tokens = self._create_tokens_for_next_line_dent(newline_token)
          if dent_tokens:
              dent_tokens.tokens.insert(0, newline_token)
              return dent_tokens
          else:
              return newline_token
docs: r'\n+