module main

struct In[T] {
    source chan T
}

fn emit[T](s In[T], ar []T) {
    for _, i in ar {
        s.source <- i
    }
}

fn from[T](ar []T) In[T] {
    s := In[T]{}

    spawn emit(s, ar)

    return s
}

fn (i In[T]) get() T {
    return <-i.source
}

fn test_main() {
    v := from[int]([1]).get()

    assert v == 1
}