How often do you think will - or should - the various strings be printed?

providers
    .provider { println("foo1"); "" }
    .flatMap { println("bar1"); providers.provider { println("baz1"); "" } }
    .also { println("get1") }
    .get()
println()
providers
    .provider { println("foo2"); "" }
    .flatMap { println("bar2"); providers.provider { println("baz2"); "" } }
    .map { println("bam2"); "" }
    .map { println("boo2"); "" }
    .also { println("get2") }
    .get()
println()
providers
    .provider { println("foo3"); "" }
    .map { println("bar3"); "" }
    .also { println("get3") }
    .get()
println()
providers
    .provider { println("foo4"); "" }
    .map { println("bar4"); "" }
    .map { println("baz4"); "" }
    .also { println("get4") }
    .get()