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title: Timer Types (dw::util::Timer)
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# Timer Types (dw::util::Timer)

> For the full documentation index, see: https://docs.mulesoft.com/llms.txt

<table><colgroup><col> <col> <col></colgroup><thead><tr><th>Type</th><th>Definition</th><th>Description</th></tr></thead><tbody><tr><td><p>DurationMeasurement</p></td><td><p><code>type DurationMeasurement = { time: Number, result: T }</code></p></td><td><p>A return type that contains the execution time and result of a function call.</p></td></tr><tr><td><p>TimeMeasurement</p></td><td><p><code>type TimeMeasurement = { start: DateTime, result: T, end: DateTime }</code></p></td><td><p>A return type that contains a start time, end time, and result of a function call.</p></td></tr></tbody></table>