st/APIReference/API_MetricDatum.html>CloudWatch docs</a></p></td></tr></tbody></table></section><h2 id=Params-MetricDatum-Unit>Params.MetricDatum.Unit</h2><section><table class=enum-values><thead><tr><th>Name</th><th>Description</th></tr></thead><tbody><tr id=Params-MetricDatum-Unit-None><td><code>None</code></td><td></td></tr><tr id=Params-MetricDatum-Unit-Seconds><td><code>Seconds</code></td><td></td></tr><tr id=Params-MetricDatum-Unit-Microseconds><td><code>Microseconds</code></td><td></td></tr><tr id=Pa