iRule to modify response code for ASM blocking page

when ASM_REQUEST_BLOCKING {
    set blocked 1
    set response [ASM::payload]
}
 
when HTTP_RESPONSE_RELEASE {
    catch {
        if { $blocked } {
            HTTP::respond 500 content $response
        }
    }
}

Something like this should work. The "catch" to prevent errors for not-blocked requests may be a bit crude. The thing eaa did with setting the indicator for all requests may be better. But this is shorter. I don't know, I'm not a programmer.