public void setItems(java.util.Map<String, java.util.List<java.util.List<Long>>> items) {
        this.items = items;
    }
<p>
The usage data, as daily logs of used and remaining quotas, over the specified time interval indexed over the API
keys in a usage plan. For example,
<code>{..., "values" : { "{api_key}" : [ [0, 100], [10, 90], [100, 10]]}</code>, where <code>{api_key}</code>
stands for an API key value and the daily log entry is of the format <code>[used quota, remaining quota]</code>.
</p>

@param items
       The usage data, as daily logs of used and remaining quotas, over the specified time interval indexed over
       the API keys in a usage plan. For example,
       <code>{..., "values" : { "{api_key}" : [ [0, 100], [10, 90], [100, 10]]}</code>, where
       <code>{api_key}</code> stands for an API key value and the daily log entry is of the format
       <code>[used quota, remaining quota]</code>.
aws-java-sdk-api-gateway/src/main/java/com/amazonaws/services/apigateway/model/UpdateUsageResult.java