<@U1VQRGSLT>: you can use a helper parameter: ``` ...

# announcements

[kirillrakhman]

@william-leung: you can use a helper parameter:

inline fun <reified T1, reified T2> T1.assertIsNot(of: (T2) -> Unit, message: String? = null): T1 {
    kotlin.test.assertFalse(this is T2, message)
    return this
}

fun <T> of(): (T) -> Unit = {}

usage:

1.assertIsNot(of<String>())