We found this in EscPOS project that sends raw bytes to controle PointOfSales printers.

https://github.com/mhammond/pywin32/blob/main/win32/src/win32print/win32print.cpp#L976
https://github.com/python/typeshed/blob/main/stubs/pywin32/win32/win32print.pyi#L27C4-L27C4

@Avasam

WritePrinter|Copies the specified bytes to the specified printer

python-escpos/python-escpos#607