Random PeriodicInformInterval doesn't work as expected

[George Chelidze]

Hi,

I try to set random PeriodicInformInterval with the following Provision
script:

const randomInterval = get_random_interval(60, 30);
declare("InternetGatewayDevice.ManagementServer.PeriodicInformInterval",
null, {value: randomInterval});

function get_random_interval(interval, offset) {
    return interval + Math.floor(Math.random() * offset - offset / 2);
}

What I expect to see is PeriodicInformInterval with some value which is
between 45 secs and 75 secs. Instead it's always set to 71. Any idea
what I am doing wrong?

TIA,

George Chelidze