actor counter {
    state {
        count: u64 = 0
    }

    window count_view : (count)
        readers(display)

    on Increment(amount: u64) {
        count = count + amount
    }
}

leaf ticker {
    process {
        forward(counter, Increment(1))
    }
}

leaf display {
    reads counter.count_view
    process {
        read(counter.count_view.count)
    }
}

pipeline main {
    ticker -> counter -> display
}

core main {
    actors: [counter]
    leaves: [ticker, display]
    pipelines: [main]
    steps: 5
}