/**
 * BridgeDocHandle — T20-b port from dsh-perm-gate (bridge-scope.ts, the
 * client half of the settings bridge).
 *
 * Shape-compatible with the native durable-settings handle (configForms.get /
 * settingsScope.bind subset): getSnapshot/subscribe/set. Reads POST
 * /api/<ns>/settings/describe, writes POST …/mutate (ops forwarded to the
 * host settings service); a successful write re-describes and refreshes the
 * snapshot (optimistic refresh, no local second copy of state — the service
 * stays authoritative). The initial describe fetch starts at construction;
 * the snapshot is `pending` until it lands, and the family card renders its
 * pinned default meanwhile.
 *
 * The route derivation must stay character-identical to the server side
 * (src/bridge.ts bridgeRoutesFor); the client tsconfig only includes
 * src/client, so this half holds its own copy and the parity test pins both.
 */
import type { SettingsDocHandle } from './compat.js';
/** The native handle's snapshot shape — the bridge payload cast at the boundary. */
type DocSnapshot = ReturnType<SettingsDocHandle['getSnapshot']>;
export declare class BridgeDocHandle implements SettingsDocHandle {
    private snapshot;
    private listeners;
    private revision;
    private inflight;
    private readonly routes;
    constructor(ns: string);
    /** The bridge transport is shape-agnostic; the ns payload narrows at this boundary. */
    getSnapshot(): DocSnapshot;
    subscribe(listener: () => void): () => void;
    set(field: string, value: unknown): Promise<void>;
    private notify;
    private request;
    private refresh;
    private mutate;
}
export {};
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