I'm not sure where the timeout step is defined, but it would be nice if it had some more intuitive parameters.

Currrently, it offers time and units.

options {
    timeout time: 5, units: 'MINUTES'
}

Since Groovy and Jenkins both provide for optional parameters we should provide parameters to make this simpler to write:

options {
    timeout minutes: 5
}

This could also allow for combining of parameters:

options {
    timeout hours: 2, minutes: 15
}