public java.util.List<InstanceTypeSpecification> getInstanceTypeSpecifications() {
        if (instanceTypeSpecifications == null) {
            instanceTypeSpecifications = new com.amazonaws.internal.SdkInternalList<InstanceTypeSpecification>();
        }
        return instanceTypeSpecifications;
    }
<p>
An array of specifications for the instance types that comprise an instance fleet.
</p>

@return An array of specifications for the instance types that comprise an instance fleet.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/InstanceFleet.java