# This helper script returns the g value (cost from start) of a node.
g_score:
    type: procedure
    definitions: node
    script:
        - define node <def[node].unescaped>
        - narrate "node was <def[node]>"
        - define g_val <def[node].get[2]>
        - narrate "g_score was <def[g_val]>"
        - determine <def[g_val]>