fn computeAbsBloop bloop =
(
    versionNumber = maxVersion()

    if versionNumber[1] < 9000 then
    (
        print "Max version 9 required"
        return false
    )

    if bloop == undefined then
    (
        print "Bloop is undefined"
        return false
    )

    try
    (
        abs bloop
    )
    catch
    (
        print "No function abs"
        false
    )
)

computeAbsBloop -17