A LangGraph specific deprecation warning.
LangGraphDeprecationWarning(
self,
message: str,
*args: object = (),
since: tuple[int, int],
expected_removal: tuple[int, int] | None = None
)DeprecationWarningInspired by the Pydantic PydanticDeprecationWarning class, which sets a great standard
for deprecation warnings with clear versioning information.