class_docstr: Base class for a header defect.
class_docstr_tok: ["Base","class","for","a","header","defect","."]
code: def __init__(self, *args, **kw):
      super().__init__(*args, **kw)
  
label_desc: Use image node_id 1 to create a new HeaderDefect object from inherited base classes: MessageDefect with example: obj = HeaderDefect()