Traceback (most recent call last): File "", line 1, in import generated_vuln_inst2 File "/workspace/bundle/repro/run/generated_vuln_inst2.py", line 12, in class ExploitModel( ...<3 lines>... value: str | None = None TypeError: metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases