1) Download and open Termux.
2) Type and enter in Termux -
curl -s -L "https://github.com/HunterXProgrammer/Tasker-mdtest/releases/download/mdtest-V3-assets/qr_code_scan_for_mdtest_second_method.sh" | bash
Now to connect it to WhatsApp -
Type and enter in Termux:- >