public java.util.List<String> getSubnetIds() {
        return subnetIds;
    }
<p>
A list of subnet IDs associated with the VPC endpoints for the domain. If your domain uses multiple Availability
Zones, you need to provide two subnet IDs, one per zone. Otherwise, provide only one.
</p>

@return A list of subnet IDs associated with the VPC endpoints for the domain. If your domain uses multiple
        Availability Zones, you need to provide two subnet IDs, one per zone. Otherwise, provide only one.
aws-java-sdk-opensearch/src/main/java/com/amazonaws/services/opensearch/model/VPCOptions.java