code: def b_label_name(self):
      return "{}{}".format(self.B_LABEL_PREFIX, self.label)
  
imports: import builtins
  import json
  import os
  import unicodedata
  from typing import Any, List, Optional, Tuple
label_desc: Use image node_id 4 for calling the Slot obj's underlying member method code with example usage: obj.b_label_name() and returns: str