``` it("kotlin slack") { val map = mutableMapO...

# test

[thatadamedwards]

it("kotlin slack") {
    val map = mutableMapOf("fruits" to mutableSetOf("apple", "banana", "orange", "cherry"))

    fun putValueInAppropriateCategory(value: String, key: String, map: MutableMap<String, MutableSet<String>>) {
        map[key]?.plus(mutableSetOf(value))
    }

    putValueInAppropriateCategory("strawberry", "fruits", map)

    map["fruits"].should.contain("strawberry")
}