waitUntilDBInstanceAvailable
suspend fun DocDbClient.waitUntilDBInstanceAvailable(request: DescribeDbInstancesRequest = DescribeDbInstancesRequest { }, retryStrategy: RetryStrategy? = null): Outcome<DescribeDbInstancesResponse>
suspend fun DocDbClient.waitUntilDBInstanceAvailable(block: DescribeDbInstancesRequest.Builder.() -> Unit): Outcome<DescribeDbInstancesResponse>