library is printing '64, rev:0xc0314' after begin is called #113

I have some Hiwonder Turbopi robots that come with an image/SDK that seems to be using this library.

If I set a breakpoint within their python SDK code, it prints 64, rev:0xc0314 as I step over the PixelStrip.begin() call.

If I import their SDK, which imports and calls begin(), this string doesn't print until later; usually before main exits.

What is printing this, and can I disable it?