/**
 * The Deno host's typed answer delivery.
 *
 * Delivery reaches a run's file the same way storage does — the SHA-256 of the
 * public run id beneath the authorized root — and then does the least a durable
 * answer can be retained with. It takes no executor lock, so a run somebody is
 * about to resume, or is resuming right now, can still be answered; what serializes
 * the write is the connection and SQLite, not lifecycle ownership.
 *
 * ## Everything is checked before anything is written
 *
 * The run has to be `suspended`, its stop reason has to name a retained
 * `suspension_request` event, and that event has to be the wait the caller
 * named. The value is then judged against the response schema that request
 * retained, and scanned for credentials. Only after all of that does a
 * transaction open — and it asks the same questions again, inside the
 * transaction, because everything above it was read from a snapshot somebody
 * else could have moved on from.
 *
 * A refusal therefore leaves the database byte-identical. Nothing here writes
 * on the way to saying no.
 */
import { type Operation } from "effection";
import type { WorkflowRunConnections } from "./connections.js";
export interface WorkflowInputDeliveryOptions {
    /** The directory this host keeps runs in. Absolute, as storage requires. */
    readonly root: string;
}
/** Install typed answer delivery for the current scope and its descendants. */
export declare function useWorkflowInputDelivery(options: WorkflowInputDeliveryOptions): Operation<void>;
/** The same installation, over a registry the host already owns. */
export declare function installWorkflowInputDelivery(options: WorkflowInputDeliveryOptions, connections: WorkflowRunConnections): Operation<void>;