```fun someFunction(something: Foo): Mono<Foo> { fooRepository.find() ...

# functional

[thanerian]

fun someFunction(something: Foo): Mono<Foo> {
        fooRepository.find()
                .flatMap { zoo ->
                       val changed = functionThatReturnsZoo()
                       fooRepository.save(zoo)// or changed
                }
}