class_docstr: For Lasso 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
class_docstr_tok: ["For","Lasso","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 __init__(self, **options):
      self.builtinshighlighting = get_bool_opt(
          options, "builtinshighlighting", True
      )
      self.requiredelimiters = get_bool_opt(
          options, "requiredelimiters", False
      )
  
      self._builtins = set()
      self._members = set()
      if self.builtinshighlighting:
          from pygments.lexers._lasso_builtins import BUILTINS, MEMBERS
  
          for key, value in BUILTINS.items():
              self._builtins.update(value)
          for key, value in MEMBERS.items():
              self._members.update(value)
      RegexLexer.__init__(self, **options)
  
imports: import re
  from pygments.lexer import bygroups, combined, default, do_insertions, include, inherit, Lexer, RegexLexer, this, using, words, line_re
  from pygments.token import Text, Comment, Operator, Keyword, Name, String, Number, Punctuation, Other, Generic, Whitespace
  from pygments.util import get_bool_opt
  import pygments.unistring
label_desc: Use image node_id 1 to create a new LassoLexer object from inherited base classes: RegexLexer with example: obj = LassoLexer()