waitUntilNatGatewayAvailable
suspend fun Ec2Client.waitUntilNatGatewayAvailable(request: DescribeNatGatewaysRequest = DescribeNatGatewaysRequest { }, retryStrategy: RetryStrategy? = null): Outcome<DescribeNatGatewaysResponse>
suspend fun Ec2Client.waitUntilNatGatewayAvailable(block: DescribeNatGatewaysRequest.Builder.() -> Unit): Outcome<DescribeNatGatewaysResponse>