graph_to_tree# class brainstate.graph.graph_to_tree(may_have_graph_nodes, /, *, prefix=<class 'brainstate.typing.Missing'>, split_fn=<function _default_split_fn>, map_non_graph_nodes=False, check_aliasing=True)[source]# Convert a pytree that may contain graph nodes into a pure pytree of NodeStates. Return type: tuple[PyTree, dict[tuple[TypeVar(KeyEntry), ...], int | Array | ndarray]]