Create example_background_usage.js

Author: franks883

Core ServiceNow APIs/GlideAggregate/Incident resolution percentile by assignment group/example_background_usage.js

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+// Background Script: example usage for PercentileMetrics
+(function() {
+  var util = new PercentileMetrics();
+  var out = util.resolutionPercentiles({
+    windowDays: 30,
+    groupField: 'assignment_group',
+    percentiles: [0.5, 0.9, 0.95]
+  });
+
+  out.forEach(function(r) {
+    gs.info('Group=' + r.group + ' count=' + r.count + ' avg=' + r.avgMins + 'm P50=' + r.p['0.5'] + 'm P90=' + r.p['0.9'] + 'm P95=' + r.p['0.95'] + 'm');
+  });
+})();