of

@ExperimentalSince(version = KotoolsTypesVersion.V4_5_0)

fun <E> of(head: E, vararg tail: E): NotEmptySet<E>

Creates a NotEmptySet starting with a head and containing all the elements of the optional tail.

Calling from Kotlin

Here's an example of calling this function from Kotlin code:

val integers: NotEmptySet<Int> = NotEmptySet.of(1, 2, 3, 1)
assertEquals(expected = "[1, 2, 3]", actual = "$integers")

The NotEmptySet type being an inline value class, this function is not available yet for Java users.