Correct type hints for networkx/algorithms/flow/mincost.pyi (#14395)

Author: engnatha

stubs/networkx/networkx/algorithms/flow/mincost.pyi

@@ -6,14 +6,16 @@ from networkx.utils.backends import _dispatchable
 __all__ = ["min_cost_flow_cost", "min_cost_flow", "cost_of_flow", "max_flow_min_cost"]
 
 @_dispatchable
-def min_cost_flow_cost(G: Graph[_Node], demand: str = "demand", capacity: str = "capacity", weight: str = "weight"): ...
+def min_cost_flow_cost(
+    G: Graph[_Node], demand: str = "demand", capacity: str = "capacity", weight: str = "weight"
+) -> int | float: ...
 @_dispatchable
 def min_cost_flow(
     G: Graph[_Node], demand: str = "demand", capacity: str = "capacity", weight: str = "weight"
-) -> tuple[int | Incomplete, dict[Incomplete, dict[Incomplete, Incomplete]]]: ...
+) -> dict[Incomplete, dict[Incomplete, Incomplete]]: ...
 @_dispatchable
-def cost_of_flow(G: Graph[_Node], flowDict: SupportsGetItem[Incomplete, Incomplete], weight: str = "weight"): ...
+def cost_of_flow(G: Graph[_Node], flowDict: SupportsGetItem[Incomplete, Incomplete], weight: str = "weight") -> int | float: ...
 @_dispatchable
 def max_flow_min_cost(
     G: Graph[_Node], s: str, t: str, capacity: str = "capacity", weight: str = "weight"
-) -> tuple[int | Incomplete, dict[Incomplete, dict[Incomplete, Incomplete]]]: ...
+) -> dict[Incomplete, dict[Incomplete, Incomplete]]: ...