code: @Override
      public DescribeHostReservationsResult describeHostReservations(DescribeHostReservationsRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeHostReservations(request);
      }
docs: <p>
  Describes reservations that are associated with Dedicated Hosts in your account.
  </p>
  
  @param describeHostReservationsRequest
  @return Result of the DescribeHostReservations operation returned by the service.
  @sample AmazonEC2.DescribeHostReservations
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/DescribeHostReservations" target="_top">AWS
  API Documentation</a>