class_docstr: Lexer for YAML, a human-friendly data serialization
  language.
  
  .. versionadded:: 0.11
class_docstr_tok: ["Lexer","for","YAML",",","a","human-friendly","data","serialization","language",".","..","versionadded",":",":","0.11"]
code: def get_tokens_unprocessed(self, text=None, context=None):
      if context is None:
          context = YamlLexerContext(text, 0)
      return super().get_tokens_unprocessed(text, context)
  
imports: from pygments.lexer import Lexer, ExtendedRegexLexer, LexerContext, include, bygroups
  from pygments.token import Comment, Error, Keyword, Literal, Name, Number, Punctuation, String, Whitespace
label_desc: Use image node_id 9 for calling the YamlLexer obj's underlying member method code with example usage: obj.get_tokens_unprocessed(text, context) and returns: super