/**
 * 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;