public StackInstanceSummary withLastOperationId(String lastOperationId) {
        setLastOperationId(lastOperationId);
        return this;
    }
<p>
The last unique ID of a StackSet operation performed on a stack instance.
</p>

@param lastOperationId
       The last unique ID of a StackSet operation performed on a stack instance.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-cloudformation/src/main/java/com/amazonaws/services/cloudformation/model/StackInstanceSummary.java