val type: ApiType? = null,
    val variance: Variance = Variance.INVARIANT,
    val typeArguments: List<ApiTypeUsage> = emptyList(),
    val bounds: List<ApiTypeUsage> = emptyList()
) {
    /**
     * Type usage is raw if type has no type parameters or if usage has no type arguments.
     */
    internal
    val isRaw: Boolean