How to get boot.Img from Samsung tab a 10.5 sm-t595 I have been trying and failing for days to root my tablet. As far as I can tell there is no TWRP available for this device and the only way that looks possible to root it is to use magisk adb method. The problem is I can't get the root. Img file to allow me to follow the instructions. Can anyone help?

Thanks

Paul
Thanks to alecxs for all the help. In the end this was possible with Magisk Manager and odin. I will try and list all the steps needed, but there was a lot of trial and error so I may miss somthing.


Get enable OEM reset then usb debugging (this will factory reset the
tablet) 
Find the stock boot.img I found mine here  
transfer the boot.img to your phone and install magisk manager apk
(you will have to enable installing from unknown sources) 
click install magisk and choose the option to patch a boot file. Copy the
patched file back to your computer 
rename the file back to
boot.img 
download this tool to repackage it to a .tar.md5
file  
copy the boot.img into the parts folder and try and make
the .tar file then try the .md5. if you have problems download the
latest version of cygwin64 and copy the contents from the
installation folder into the bin folder of the tar.md5 tool and try
again 
now you should have a tar.md5 file containing your patched
boot.img that you can flash onto the ap partition with odin. restart
to boot loader ( hold down power and volume up or use adb command
adb reboot-bootloader and flash (there are other more detailed
tutorials on how to do this) 
check to see if it succeeded. For me
it succeeded and then when rebooting it failed the integrity check
and factory reset itself. I reinstalled magisk manager and found
that it had worked. I let magisk install itself and update. I
installed a root checker and it showed i had root access


I hope this helps someone