text: import typing as typ
  
  
  class Entry(typ.NamedTuple):
      module : str
      call   : str
      lineno : str
      src_ctx: str
  
  
  Entries = typ.List[Entry]
  
  
  class Traceback(typ.NamedTuple):
  
      exc_name: str
      exc_msg : str
      entries : Entries
  
      is_caused : bool
      is_context: bool
  
  
  Tracebacks = typ.List[Traceback]
  
  ALIASES_HEAD   = "Aliases for entries in sys.path:"
  TRACEBACK_HEAD = "Traceback (most recent call last):"
  CAUSE_HEAD     = "The above exception was the direct cause of the following exception:"
  CONTEXT_HEAD   = "During handling of the above exception, another exception occurred:"
  