toBlocking

fun <R> suspend () -> R.toBlocking(): R
fun <A, R> suspend (A) -> R.toBlocking(a: A): R
fun <A, B, R> suspend (A, B) -> R.toBlocking(a: A, b: B): R
fun <A, B, C, R> suspend (A, B, C) -> R.toBlocking(a: A, b: B, c: C): R