Function build_reference_graph_with_checkpointer 

pub fn build_reference_graph_with_checkpointer(
    runtime: Arc<dyn ComputerUseRuntime>,
    authorizer: Arc<ScopeAuthorizer>,
    checkpointer: Option<Arc<dyn Checkpointer>>,
) -> Result<CompiledGraph, GraphError>

Available on crate feature computer-use only.

Build the reference graph with a durable host-supplied checkpointer.