1  import sys
   2  from typing import List, Optional, Tuple
   3  
   4  if sys.platform == "win32":
   5  
   6      _SequenceType = List[Tuple[str, Optional[str], int]]
   7  
   8      AdminExecuteSequence: _SequenceType
   9      AdminUISequence: _SequenceType
  10      AdvtExecuteSequence: _SequenceType
  11      InstallExecuteSequence: _SequenceType
  12      InstallUISequence: _SequenceType
  13  
  14      tables: List[str]
  15