class_docstr: For `Lasso <http://www.lassosoft.com/>`_ source code, covering both Lasso 9
  syntax and LassoScript for Lasso 8.6 and earlier. For Lasso embedded in
  HTML, use the `LassoHtmlLexer`.
  
  Additional options accepted:
  
  `builtinshighlighting`
      If given and ``True``, highlight builtin types, traits, methods, and
      members (default: ``True``).
  `requiredelimiters`
      If given and ``True``, only highlight code between delimiters as Lasso
      (default: ``False``).
  
  .. versionadded:: 1.6
code: def get_tokens_unprocessed(self, text):
      stack = ["root"]
      if self.requiredelimiters:
          stack.append("delimiters")
      for index, token, value in RegexLexer.get_tokens_unprocessed(
          self, text, stack
      ):
          if (
              token is Name.Other
              and value.lower() in self._builtins
              or token is Name.Other.Member
              and value.lower().rstrip("=") in self._members
          ):
              yield index, Name.Builtin, value
              continue
          yield index, token, value
  
imports: import re
  from pygments.lexer import RegexLexer, include, bygroups, default, using, this, words, combined
  from pygments.token import Text, Comment, Operator, Keyword, Name, String, Number, Punctuation, Other
  from pygments.util import get_bool_opt, iteritems
  import pygments.unistring
label_desc: Use image node_id 2 for calling the LassoLexer obj's underlying member method code with example usage: obj.get_tokens_unprocessed(text) without return types