class_docstr: Class that raises a `TemplateSyntaxError` if called.
  Used by the `Lexer` to specify known errors.
class_docstr_tok: ["Class","that","raises","a","`","TemplateSyntaxError","`","if","called",".","Used","by","the","`","Lexer","`","to","specify","known","errors","."]
code: def __call__(self, lineno, filename):
      raise self.error_class(self.message, lineno, filename)
  
imports: import re
  from ast import literal_eval
  from collections import deque
  from operator import itemgetter
  from ._compat import implements_iterator
  from ._compat import intern
  from ._compat import iteritems
  from ._compat import text_type
  from .exceptions import TemplateSyntaxError
  from .utils import LRUCache
label_desc: Use image node_id 2 for calling the Failure obj's underlying member method code with example usage: obj.__call__(lineno, filename) without return types