waitUntilPortalNotExists
suspend fun IotSiteWiseClient.waitUntilPortalNotExists(request: DescribePortalRequest, retryStrategy: <Error class: unknown class>? = null): <Error class: unknown class><DescribePortalResponse>
suspend fun IotSiteWiseClient.waitUntilPortalNotExists(block: DescribePortalRequest.Builder.() -> Unit): <Error class: unknown class><DescribePortalResponse>