minor

evrouting/gasstation/routing.py

@@ -5,7 +5,6 @@ from evrouting.T import Node, SoC
 from evrouting.graph_tools import (
     CONSUMPTION_KEY,
     DISTANCE_KEY,
-    CHARGING_COEFFICIENT_KEY,
     consumption,
     distance,
     charging_cofficient
@@ -72,6 +71,7 @@ def insert_final_node(t: Node,
                       final_soc: SoC,
                       dist: DistFunction = dijkstra
                       ) -> nx.DiGraph:
+    """Insert terminal node into extended graph an create states and edges as necessary."""
     for u in gas_stations:
         shortest_p = dist(graph_core, t, u, weight=CONSUMPTION_KEY)
         w = fold_path(graph_core, shortest_p, weight=CONSUMPTION_KEY)