public java.util.List<HistoricalMetric> getHistoricalMetrics() {
        return historicalMetrics;
    }
<p>
The metrics to retrieve. Specify the name, unit, and statistic for each metric. The following historical metrics
are available. For a description of each metric, see <a
href="https://docs.aws.amazon.com/connect/latest/adminguide/historical-metrics-definitions.html">Historical
Metrics Definitions</a> in the <i>Amazon Connect Administrator Guide</i>.
</p>
<note>
<p>
This API does not support a contacts incoming metric (there's no CONTACTS_INCOMING metric missing from the
documented list).
</p>
</note>
<dl>
<dt>ABANDON_TIME</dt>
<dd>
<p>
Unit: SECONDS
</p>
<p>
Statistic: AVG
</p>
</dd>
<dt>AFTER_CONTACT_WORK_TIME</dt>
<dd>
<p>
Unit: SECONDS
</p>
<p>
Statistic: AVG
</p>
</dd>
<dt>API_CONTACTS_HANDLED</dt>
<dd>
<p>
Unit: COUNT
</p>
<p>
Statistic: SUM
</p>
</dd>
<dt>CALLBACK_CONTACTS_HANDLED</dt>
<dd>
<p>
Unit: COUNT
</p>
<p>
Statistic: SUM
</p>
</dd>
<dt>CONTACTS_ABANDONED</dt>
<dd>
<p>
Unit: COUNT
</p>
<p>
Statistic: SUM
</p>
</dd>
<dt>CONTACTS_AGENT_HUNG_UP_FIRST</dt>
<dd>
<p>
Unit: COUNT
</p>
<p>
Statistic: SUM
</p>
</dd>
<dt>CONTACTS_CONSULTED</dt>
<dd>
<p>
Unit: COUNT
</p>
<p>
Statistic: SUM
</p>
</dd>
<dt>CONTACTS_HANDLED</dt>
<dd>
<p>
Unit: COUNT
</p>
<p>
Statistic: SUM
</p>
</dd>
<dt>CONTACTS_HANDLED_INCOMING</dt>
<dd>
<p>
Unit: COUNT
</p>
<p>
Statistic: SUM
</p>
</dd>
<dt>CONTACTS_HANDLED_OUTBOUND</dt>
<dd>
<p>
Unit: COUNT
</p>
<p>
Statistic: SUM
</p>
</dd>
<dt>CONTACTS_HOLD_ABANDONS</dt>
<dd>
<p>
Unit: COUNT
</p>
<p>
Statistic: SUM
</p>
</dd>
<dt>CONTACTS_MISSED</dt>
<dd>
<p>
Unit: COUNT
</p>
<p>
Statistic: SUM
</p>
</dd>
<dt>CONTACTS_QUEUED</dt>
<dd>
<p>
Unit: COUNT
</p>
<p>
Statistic: SUM
</p>
</dd>
<dt>CONTACTS_TRANSFERRED_IN</dt>
<dd>
<p>
Unit: COUNT
</p>
<p>
Statistic: SUM
</p>
</dd>
<dt>CONTACTS_TRANSFERRED_IN_FROM_QUEUE</dt>
<dd>
<p>
Unit: COUNT
</p>
<p>
Statistic: SUM
</p>
</dd>
<dt>CONTACTS_TRANSFERRED_OUT</dt>
<dd>
<p>
Unit: COUNT
</p>
<p>
Statistic: SUM
</p>
</dd>
<dt>CONTACTS_TRANSFERRED_OUT_FROM_QUEUE</dt>
<dd>
<p>
Unit: COUNT
</p>
<p>
Statistic: SUM
</p>
</dd>
<dt>HANDLE_TIME</dt>
<dd>
<p>
Unit: SECONDS
</p>
<p>
Statistic: AVG
</p>
</dd>
<dt>HOLD_TIME</dt>
<dd>
<p>
Unit: SECONDS
</p>
<p>
Statistic: AVG
</p>
</dd>
<dt>INTERACTION_AND_HOLD_TIME</dt>
<dd>
<p>
Unit: SECONDS
</p>
<p>
Statistic: AVG
</p>
</dd>
<dt>INTERACTION_TIME</dt>
<dd>
<p>
Unit: SECONDS
</p>
<p>
Statistic: AVG
</p>
</dd>
<dt>OCCUPANCY</dt>
<dd>
<p>
Unit: PERCENT
</p>
<p>
Statistic: AVG
</p>
</dd>
<dt>QUEUE_ANSWER_TIME</dt>
<dd>
<p>
Unit: SECONDS
</p>
<p>
Statistic: AVG
</p>
</dd>
<dt>QUEUED_TIME</dt>
<dd>
<p>
Unit: SECONDS
</p>
<p>
Statistic: MAX
</p>
</dd>
<dt>SERVICE_LEVEL</dt>
<dd>
<p>
You can include up to 20 SERVICE_LEVEL metrics in a request.
</p>
<p>
Unit: PERCENT
</p>
<p>
Statistic: AVG
</p>
<p>
Threshold: For <code>ThresholdValue</code>, enter any whole number from 1 to 604800 (inclusive), in seconds. For
<code>Comparison</code>, you must enter <code>LT</code> (for "Less than").
</p>
</dd>
</dl>

@return The metrics to retrieve. Specify the name, unit, and statistic for each metric. The following historical
        metrics are available. For a description of each metric, see <a
        href="https://docs.aws.amazon.com/connect/latest/adminguide/historical-metrics-definitions.html"
        >Historical Metrics Definitions</a> in the <i>Amazon Connect Administrator Guide</i>.</p> <note>
        <p>
        This API does not support a contacts incoming metric (there's no CONTACTS_INCOMING metric missing from
        the documented list).
        </p>
        </note>
        <dl>
        <dt>ABANDON_TIME</dt>
        <dd>
        <p>
        Unit: SECONDS
        </p>
        <p>
        Statistic: AVG
        </p>
        </dd>
        <dt>AFTER_CONTACT_WORK_TIME</dt>
        <dd>
        <p>
        Unit: SECONDS
        </p>
        <p>
        Statistic: AVG
        </p>
        </dd>
        <dt>API_CONTACTS_HANDLED</dt>
        <dd>
        <p>
        Unit: COUNT
        </p>
        <p>
        Statistic: SUM
        </p>
        </dd>
        <dt>CALLBACK_CONTACTS_HANDLED</dt>
        <dd>
        <p>
        Unit: COUNT
        </p>
        <p>
        Statistic: SUM
        </p>
        </dd>
        <dt>CONTACTS_ABANDONED</dt>
        <dd>
        <p>
        Unit: COUNT
        </p>
        <p>
        Statistic: SUM
        </p>
        </dd>
        <dt>CONTACTS_AGENT_HUNG_UP_FIRST</dt>
        <dd>
        <p>
        Unit: COUNT
        </p>
        <p>
        Statistic: SUM
        </p>
        </dd>
        <dt>CONTACTS_CONSULTED</dt>
        <dd>
        <p>
        Unit: COUNT
        </p>
        <p>
        Statistic: SUM
        </p>
        </dd>
        <dt>CONTACTS_HANDLED</dt>
        <dd>
        <p>
        Unit: COUNT
        </p>
        <p>
        Statistic: SUM
        </p>
        </dd>
        <dt>CONTACTS_HANDLED_INCOMING</dt>
        <dd>
        <p>
        Unit: COUNT
        </p>
        <p>
        Statistic: SUM
        </p>
        </dd>
        <dt>CONTACTS_HANDLED_OUTBOUND</dt>
        <dd>
        <p>
        Unit: COUNT
        </p>
        <p>
        Statistic: SUM
        </p>
        </dd>
        <dt>CONTACTS_HOLD_ABANDONS</dt>
        <dd>
        <p>
        Unit: COUNT
        </p>
        <p>
        Statistic: SUM
        </p>
        </dd>
        <dt>CONTACTS_MISSED</dt>
        <dd>
        <p>
        Unit: COUNT
        </p>
        <p>
        Statistic: SUM
        </p>
        </dd>
        <dt>CONTACTS_QUEUED</dt>
        <dd>
        <p>
        Unit: COUNT
        </p>
        <p>
        Statistic: SUM
        </p>
        </dd>
        <dt>CONTACTS_TRANSFERRED_IN</dt>
        <dd>
        <p>
        Unit: COUNT
        </p>
        <p>
        Statistic: SUM
        </p>
        </dd>
        <dt>CONTACTS_TRANSFERRED_IN_FROM_QUEUE</dt>
        <dd>
        <p>
        Unit: COUNT
        </p>
        <p>
        Statistic: SUM
        </p>
        </dd>
        <dt>CONTACTS_TRANSFERRED_OUT</dt>
        <dd>
        <p>
        Unit: COUNT
        </p>
        <p>
        Statistic: SUM
        </p>
        </dd>
        <dt>CONTACTS_TRANSFERRED_OUT_FROM_QUEUE</dt>
        <dd>
        <p>
        Unit: COUNT
        </p>
        <p>
        Statistic: SUM
        </p>
        </dd>
        <dt>HANDLE_TIME</dt>
        <dd>
        <p>
        Unit: SECONDS
        </p>
        <p>
        Statistic: AVG
        </p>
        </dd>
        <dt>HOLD_TIME</dt>
        <dd>
        <p>
        Unit: SECONDS
        </p>
        <p>
        Statistic: AVG
        </p>
        </dd>
        <dt>INTERACTION_AND_HOLD_TIME</dt>
        <dd>
        <p>
        Unit: SECONDS
        </p>
        <p>
        Statistic: AVG
        </p>
        </dd>
        <dt>INTERACTION_TIME</dt>
        <dd>
        <p>
        Unit: SECONDS
        </p>
        <p>
        Statistic: AVG
        </p>
        </dd>
        <dt>OCCUPANCY</dt>
        <dd>
        <p>
        Unit: PERCENT
        </p>
        <p>
        Statistic: AVG
        </p>
        </dd>
        <dt>QUEUE_ANSWER_TIME</dt>
        <dd>
        <p>
        Unit: SECONDS
        </p>
        <p>
        Statistic: AVG
        </p>
        </dd>
        <dt>QUEUED_TIME</dt>
        <dd>
        <p>
        Unit: SECONDS
        </p>
        <p>
        Statistic: MAX
        </p>
        </dd>
        <dt>SERVICE_LEVEL</dt>
        <dd>
        <p>
        You can include up to 20 SERVICE_LEVEL metrics in a request.
        </p>
        <p>
        Unit: PERCENT
        </p>
        <p>
        Statistic: AVG
        </p>
        <p>
        Threshold: For <code>ThresholdValue</code>, enter any whole number from 1 to 604800 (inclusive), in
        seconds. For <code>Comparison</code>, you must enter <code>LT</code> (for "Less than").
        </p>
        </dd>
aws-java-sdk-connect/src/main/java/com/amazonaws/services/connect/model/GetMetricDataRequest.java