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fix: mypy issue with conditional edges (#5851)

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Send should inherit from hashable, and need to use Sequence since List
is invariant.

https://github.com/langchain-ai/langgraph/issues/5850
This commit is contained in:
Isaac Francisco
2025-08-07 08:46:44 -07:00
committed by GitHub
parent 4571b708d9
commit 5c0c0fb186
2 changed files with 11 additions and 11 deletions
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libs/langgraph/langgraph/graph/_branch.py
+5 -5
View File
@@ -41,16 +41,16 @@ _Writer = Callable[
def _get_branch_path_input_schema(
path: Callable[..., Hashable | list[Hashable]]
| Callable[..., Awaitable[Hashable | list[Hashable]]]
| Runnable[Any, Hashable | list[Hashable]],
path: Callable[..., Hashable | Sequence[Hashable]]
| Callable[..., Awaitable[Hashable | Sequence[Hashable]]]
| Runnable[Any, Hashable | Sequence[Hashable]],
) -> type[Any] | None:
input = None
# detect input schema annotation in the branch callable
try:
callable_: (
Callable[..., Hashable | list[Hashable]]
| Callable[..., Awaitable[Hashable | list[Hashable]]]
Callable[..., Hashable | Sequence[Hashable]]
| Callable[..., Awaitable[Hashable | Sequence[Hashable]]]
| None
) = None
if isinstance(path, (RunnableCallable, RunnableLambda)):
libs/langgraph/langgraph/graph/state.py
+6 -6
View File
@@ -607,9 +607,9 @@ class StateGraph(Generic[StateT, ContextT, InputT, OutputT]):
def add_conditional_edges(
self,
source: str,
path: Callable[..., Hashable | list[Hashable]]
| Callable[..., Awaitable[Hashable | list[Hashable]]]
| Runnable[Any, Hashable | list[Hashable]],
path: Callable[..., Hashable | Sequence[Hashable]]
| Callable[..., Awaitable[Hashable | Sequence[Hashable]]]
| Runnable[Any, Hashable | Sequence[Hashable]],
path_map: dict[Hashable, str] | list[str] | None = None,
) -> Self:
"""Add a conditional edge from the starting node to any number of destination nodes.
@@ -710,9 +710,9 @@ class StateGraph(Generic[StateT, ContextT, InputT, OutputT]):
def set_conditional_entry_point(
self,
path: Callable[..., Hashable | list[Hashable]]
| Callable[..., Awaitable[Hashable | list[Hashable]]]
| Runnable[Any, Hashable | list[Hashable]],
path: Callable[..., Hashable | Sequence[Hashable]]
| Callable[..., Awaitable[Hashable | Sequence[Hashable]]]
| Runnable[Any, Hashable | Sequence[Hashable]],
path_map: dict[Hashable, str] | list[str] | None = None,
) -> Self:
"""Sets a conditional entry point in the graph.