SWD Pins for Nano 33 IoT board

Hello Dude,
From the schematic of Nano 33 IoT board, where is SWD Pins (J4) at the board? Please refer to attached pictures.

pak

NANO33IoTV2.0_sch_SWD.jpg

on the bottom side

Thank for reply, can you please point out where PA30_SWCLK and PA31_SWDIO pins are? I'm not familiar with Eagle file.