code: @Override
      public DescribeEventAggregatesResult describeEventAggregates(DescribeEventAggregatesRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeEventAggregates(request);
      }
docs: <p>
  Returns the number of events of each event type (issue, scheduled change, and account notification). If no filter
  is specified, the counts of all events in each category are returned.
  </p>
  
  @param describeEventAggregatesRequest
  @return Result of the DescribeEventAggregates operation returned by the service.
  @throws InvalidPaginationTokenException
  The specified pagination token (<code>nextToken</code>) is not valid.
  @sample AWSHealth.DescribeEventAggregates
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/health-2016-08-04/DescribeEventAggregates" target="_top">AWS
  API Documentation</a>