Octave 8.3.0- the basic test of timer does not work.

i tried a basic functionality test, as per README.md file. The package got successfully loaded, but the functionality test as t=timer('TimerFcn','disp OK', 'Period',3, 'ExecutionMode','fixedDelay'); start(t); does not do anything. checking the octave directory ~/.local/share/octave/api-v58/packages/timer-0.1.1, where packages are downloaded, I do not see all the exact copy of the repository, but the file timer.m is present.