waitUntilImageExists
suspend fun Ec2Client.waitUntilImageExists(request: DescribeImagesRequest = DescribeImagesRequest { }, retryStrategy: RetryStrategy? = null): Outcome<DescribeImagesResponse>
suspend fun Ec2Client.waitUntilImageExists(block: DescribeImagesRequest.Builder.() -> Unit): Outcome<DescribeImagesResponse>