Kotlin: Can you use named arguments for varargs?

For example, you might have function with a complicated signature and varargs:

fun complicated(easy: Boolean = false, hard: Boolean = true, vararg numbers: Int)

It would make sense that you should be able to call this function like so:

complicated(numbers = 1, 2, 3, 4, 5)

Unfortunately the compiler doesn't allow this.

Is it possible to use named arguments for varargs? Are there any clever workarounds?

It can be worked around by moving optional arguments after the vararg:

fun complicated(vararg numbers: Int, easy: Boolean = false, hard: Boolean = true) = {}

Then it can be called like this:

complicated(1, 2, 3, 4, 5)
complicated(1, 2, 3, hard = true)
complicated(1, easy = true)

Note that trailing optional params need to be always passed with name. This won't compile:

complicated(1, 2, 3, 4, true, true) // compile error

Another option is to spare vararg sugar for explicit array param:

fun complicated(easy: Boolean = false, hard: Boolean = true, numbers: IntArray) = {}

complicated(numbers = intArrayOf(1, 2, 3, 4, 5))