If a priority queue is implemented as a binary search tree instead of a heap, the member function defined in PQType would not change, but the private data members defined in PQType would change. The only data member would be a pointer to a Tree Node TreeNode * items; Complete the dequeue operation, using this implementation. template void PQType :: Dequeue (ItemType& item)//Pre: Priority queue is not empty.//Post: The rightmost node is returned