code: @Override
      public ModifySpotFleetRequestResult modifySpotFleetRequest(ModifySpotFleetRequestRequest request) {
          request = beforeClientExecution(request);
          return executeModifySpotFleetRequest(request);
      }
docs: <p>
  Modifies the specified Spot Fleet request.
  </p>
  <p>
  While the Spot Fleet request is being modified, it is in the <code>modifying</code> state.
  </p>
  <p>
  To scale up your Spot Fleet, increase its target capacity. The Spot Fleet launches the additional Spot Instances
  according to the allocation strategy for the Spot Fleet request. If the allocation strategy is
  <code>lowestPrice</code>, the Spot Fleet launches instances using the Spot pool with the lowest price. If the
  allocation strategy is <code>diversified</code>, the Spot Fleet distributes the instances across the Spot pools.
  </p>
  <p>
  To scale down your Spot Fleet, decrease its target capacity. First, the Spot Fleet cancels any open requests that
  exceed the new target capacity. You can request that the Spot Fleet terminate Spot Instances until the size of
  the fleet no longer exceeds the new target capacity. If the allocation strategy is <code>lowestPrice</code>, the
  Spot Fleet terminates the instances with the highest price per unit. If the allocation strategy is
  <code>diversified</code>, the Spot Fleet terminates instances across the Spot pools. Alternatively, you can
  request that the Spot Fleet keep the fleet at its current size, but not replace any Spot Instances that are
  interrupted or that you terminate manually.
  </p>
  <p>
  If you are finished with your Spot Fleet for now, but will use it again later, you can set the target capacity to
  0.
  </p>
  
  @param modifySpotFleetRequestRequest
  Contains the parameters for ModifySpotFleetRequest.
  @return Result of the ModifySpotFleetRequest operation returned by the service.
  @sample AmazonEC2.ModifySpotFleetRequest
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/ModifySpotFleetRequest" target="_top">AWS API
  Documentation</a>