DS125BR820: Will boundary scan test signals pass through?

Part Number: DS125BR820
Other Parts Discussed in Thread: DS125BR800A

Tool/software:

Hello, I want to use the DS125BR820 for 5G PCIe but I would also like to test each differential bus with 1149.6 JTAG boundary scan. Will the DS125BR820 redrive the boundary scan test signals?

Thank you