code: def test_mmap():
      import mmap
  
      with TestHook() as hook:
          mmap.mmap(-1, 8)
          assertEqual(hook.seen[0][1][:2], (-1, 8))
  
imports: import contextlib
  import os
  import sys
label_desc: Use image node_id 14 for calling a global function with example usage: test_mmap() without return types