Add type hints for compiled modules

core/pe/block.pyi

@@ -0,0 +1,13 @@
+from typing import Tuple, List, Union, Sequence
+
+_block = Tuple[int, int, int]
+
+class NoBlocksError(Exception): ...  # noqa: E302, E701
+class DifferentBlockCountError(Exception): ...  # noqa E701
+
+def getblock(image: object) -> Union[_block, None]: ...  # noqa: E302
+def getblocks2(image: object, block_count_per_side: int) -> Union[List[_block], None]: ...
+def diff(first: _block, second: _block) -> int: ...
+def avgdiff(  # noqa: E302
+    first: Sequence[_block], second: Sequence[_block], limit: int = 768, min_iterations: int = 1
+) -> Union[int, None]: ...