/**
 * Toggles `hidden` on descendants of `host` with `data-swish-when` based on
 * the current state. The attribute value may be a single state or a
 * comma-separated list (e.g. `"saved,saving"`) - the child is shown when
 * the current state matches any entry. Re-applies whenever the bound
 * signal changes.
 */
export declare function bindWhen(host: HTMLElement, getState: () => string): () => void;
/**
 * Sets `textContent` on descendants of `host` matching
 * `[data-swish-bind="<key>"]` to the resolved value.
 */
export declare function bindValue(host: HTMLElement, key: string, getValue: () => string | number): () => void;
/**
 * Calls `onReset` after something outside the SDK rewrites `host`'s subtree.
 *
 * Horizon-family themes re-hydrate the header section about a second after
 * load, and morph cart and product markup on every cart change
 * (`@theme/section-hydration` / `morphSection` → `morph`). The morph keeps the
 * live nodes but copies the server HTML over them: attributes the server
 * didn't render are stripped (`state`, `ready`), text nodes are reset (a
 * badge's "3" back to its "0" placeholder), `hidden` placeholders come back,
 * and children the server didn't render — the badge `ensureBadge` injects —
 * are removed. The bound signal hasn't changed, so no effect re-runs on its
 * own and the reset sticks until the next save or unsave (SWI-3044). The
 * theme's own opt-out (`data-skip-node-update`) only counts when the server
 * markup carries it too, so it can't be added from here.
 *
 * `onReset` must be idempotent and only write what differs. The records its
 * own writes queue are drained before the callback returns, so an external
 * reset costs exactly one pass and never loops.
 */
export declare function observeExternalResets(host: HTMLElement, onReset: () => void): () => void;