bulkimport/src/main/java/com/microsoft/azure/documentdb/bulkimport/InsertMetrics.java
public static InsertMetrics sum(InsertMetrics m1, InsertMetrics m2) {
        long totalDocsInserted = m1.numberOfDocumentsInserted + m2.numberOfDocumentsInserted;
        Duration totalTimeTaken = m1.timeTaken.plus(m2.timeTaken);
        double totalRequestUnitsConsumed = m1.requestUnitsConsumed + m2.requestUnitsConsumed;
        long totalNumberOfThrottles = m1.numberOfThrottles + m2.numberOfThrottles;

        return new InsertMetrics(totalDocsInserted, totalTimeTaken, totalRequestUnitsConsumed, totalNumberOfThrottles);
    }
public static InsertMetrics sum(InsertMetrics m1, InsertMetrics m2) {
        long totalDocsInserted = m1.numberOfDocumentsInserted + m2.numberOfDocumentsInserted;
        Duration totalTimeTaken = m1.timeTaken.plus(m2.timeTaken);
        double totalRequestUnitsConsumed = m1.requestUnitsConsumed + m2.requestUnitsConsumed;
        long totalNumberOfThrottles = m1.numberOfThrottles + m2.numberOfThrottles;

        return new InsertMetrics(totalDocsInserted, totalTimeTaken, totalRequestUnitsConsumed, totalNumberOfThrottles);
    }
Sums two {@link InsertMetrics} instances
@param m1
@param m2
@return the sum aggregate result