public java.util.List<InventoryAggregator> getAggregators() {
        if (aggregators == null) {
            aggregators = new com.amazonaws.internal.SdkInternalList<InventoryAggregator>();
        }
        return aggregators;
    }
<p>
Returns counts of inventory types based on one or more expressions. For example, if you aggregate by using an
expression that uses the <code>AWS:InstanceInformation.PlatformType</code> type, you can see a count of how many
Windows and Linux managed nodes exist in your inventoried fleet.
</p>

@return Returns counts of inventory types based on one or more expressions. For example, if you aggregate by
        using an expression that uses the <code>AWS:InstanceInformation.PlatformType</code> type, you can see a
        count of how many Windows and Linux managed nodes exist in your inventoried fleet.
aws-java-sdk-ssm/src/main/java/com/amazonaws/services/simplesystemsmanagement/model/GetInventoryRequest.java