import sys from typing_extensions import TypeAlias if sys.platform == "win32": _SequenceType: TypeAlias = list[tuple[str, str | None, int]] AdminExecuteSequence: _SequenceType AdminUISequence: _SequenceType AdvtExecuteSequence: _SequenceType InstallExecuteSequence: _SequenceType InstallUISequence: _SequenceType tables: list[str]