code: def test_big_endian():
      assert _binary.i16be(b"\x00\x00\xff\xff") == 0
      assert _binary.i32be(b"\x00\x00\xff\xff") == 65535
  
      assert _binary.o16be(65535) == b"\xff\xff"
      assert _binary.o32be(65535) == b"\x00\x00\xff\xff"
  
imports: from __future__ import annotations
  from PIL import _binary
label_desc: Use image node_id 3 for calling a global function with example usage: test_big_endian() without return types