how to set value at time of rotation in extend script

i know how to set value at time of scale, opacity and position, but for some reason rotation doesnt work for me.

i write scale for example as

var x1s = app.project.item(3).layer(1).property("ADBE Transform Group").property("ADBE Scale");

x1s.setValueAtTime([0], [360, 0]);

but when i write rotation as

var x1r = app.project.item(3).layer(1).property("ADBE Transform Group").property("ADBE Rotation");

x1r.setValueAtTime([0], [360, 0]);

it doesnt work. anybody knows why?