Function minusAssign

src/main/java/fieldkotlin/KI_stdlib_support.kt:111–113

        _alpha = v
    }


fun launchSeq(frames: Int, name: String? = null, forceEnd: Boolean = false, s: suspend SequenceScope<Any>.() -> Unit) {
    var rn = name ?: "anon_${_launch_uniq++}"
    var ss = sequence(s).iterator()
    var frame = 0