Generate a python program that has the following intention:

The intention of this program is to find the shortest path between two nodes in a graph, using the Fibonacci heap data structure and NAME_1's algorithm.

The program defines a function shortest_path_length that takes three arguments: line_length, start, and destination. line_length is a dictionary that maps each pair of nodes to the length of the line between them. start and destination are the two nodes that we want to find the shortest path between.

The function shortest_path_length begins by creating a Fibonacci heap, unknown_points, that contains tuples of the form (node, distance). The first element of the tuple is the node, and the second element is the distance from the start node to that node. The heappop function is used to pop the minimum element off the heap.

The function then iterates over the heap until it finds the destination node. When it finds the destination node, it returns the distance that it has found so far. If the destination node is not found, the function continues.

The program then uses a set, known_points, to keep track of the nodes that have already been visited. It adds the current node to the set, and then begins a loop to find the shortest path to all the nodes that are adjacent to the current node.

The insert_or_update function is used to insert or update a node and its distance in the Fibonacci heap. If the node is already in the heap, the function updates its distance. If the node is not in the heap, the function inserts it with its current distance.

The get function is used to retrieve the distance of a node from the heap. It iterates over the heap and returns the distance of the first node that matches the given node.

The unknown_points heap is then used to find the shortest path to all the nodes that are adjacent to the current node. The insert_or_update function is used to insert or update the adjacent nodes and their distances in the heap.

The loop continues until all the nodes in the graph have been visited. The function then returns the distance that it has found so far.

In summary, the program uses NAME_1's algorithm to find the shortest path between two nodes in a graph, using the Fibonacci heap data structure to keep track of the nodes and their distances. The program is designed to be efficient and can handle large graphs with many nodes and edges. Make sure your entire response is wrapped in JSON format.
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