/**
 * Bound a host-supplied RAG promise to operation cancellation.
 *
 * The signal is also passed to cooperative providers. This race is the
 * kernel-owned half of the contract: a custom store that ignores its signal
 * may continue its own work, but it cannot keep the public operation pending
 * or make a late result advance the caller's pipeline.
 */
export declare function awaitRAGOperation<T>(operation: Promise<T>, signal?: AbortSignal): Promise<T>;
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