public InstanceFleetConfig withLaunchSpecifications(InstanceFleetProvisioningSpecifications launchSpecifications) {
        setLaunchSpecifications(launchSpecifications);
        return this;
    }
<p>
The launch specification for the instance fleet.
</p>

@param launchSpecifications
       The launch specification for the instance fleet.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/InstanceFleetConfig.java