code: def _accept(prefix: bytes) -> bool:
      return prefix[:8] == b"\x00\x00\x00\x00\x00\x00\x00\x04"
  
imports: from __future__ import annotations
  import struct
  from .None import Image, ImageFile
label_desc: Use image node_id 1 for calling a global function with example usage: _accept(prefix) and returns: unknown