/etc/php/7.2/mods-available/pinba.ini is in php-pinba 1.1.0-4build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3
extension=pinba.so pinba.enabled=1 pinba.server=127.0.0.1:30002