code: @Override
      public RequestSpotInstancesResult requestSpotInstances(RequestSpotInstancesRequest request) {
          request = beforeClientExecution(request);
          return executeRequestSpotInstances(request);
      }
docs: <p>
  Creates a Spot Instance request.
  </p>
  <p>
  For more information, see <a href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/spot-requests.html">Spot
  Instance Requests</a> in the <i>Amazon EC2 User Guide for Linux Instances</i>.
  </p>
  
  @param requestSpotInstancesRequest
  Contains the parameters for RequestSpotInstances.
  @return Result of the RequestSpotInstances operation returned by the service.
  @sample AmazonEC2.RequestSpotInstances
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/RequestSpotInstances" target="_top">AWS API
  Documentation</a>