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<h4>getHighWaterMark</h4>
<pre>long&nbsp;getHighWaterMark()</pre>
<div class="block">The highest value this attribute has held since the beginning of the measurement.</div>
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<h4>getLowWaterMark</h4>
<pre>long&nbsp;getLowWaterMark()</pre>
<div class="block">The lowest value this attribute has held since the beginning of the measurement.</div>
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