class_docstr: Lexer for HTTP sessions.
  
  .. versionadded:: 1.5
code: def continuous_header_callback(self, match):
      yield match.start(1), Text, match.group(1)
      yield match.start(2), Literal, match.group(2)
      yield match.start(3), Text, match.group(3)
  
imports: import re
  from pygments.lexers import guess_lexer, get_lexer_by_name
  from pygments.lexer import RegexLexer, bygroups, default, include
  from pygments.token import Text, Comment, Operator, Keyword, Name, String, Number, Generic, Literal, Punctuation
  from pygments.util import ClassNotFound
label_desc: Use image node_id 3 for calling the HttpLexer obj's underlying member method code with example usage: obj.continuous_header_callback(match) without return types