import { SyncedState } from '@u-devtools/core';
/**
 * Svelte Store interface (compatible with Svelte's store contract)
 */
export interface SvelteStore<T> {
    subscribe: (run: (value: T) => void) => () => void;
    set: (value: T) => void;
    update: (fn: (value: T) => T) => void;
}
/**
 * Svelte adapter for SyncedState.
 * Converts SyncedState to Svelte Writable Store.
 * Allows using $state syntax in Svelte components.
 *
 * @template T - State value type
 * @param syncedState - SyncedState instance to synchronize
 * @returns Svelte store compatible with Svelte's store contract
 *
 * @example
 * ```typescript
 * import { useBridgeState } from '@u-devtools/kit/svelte';
 * import { AppBridge } from '@u-devtools/core';
 *
 * // Create bridge and state
 * const bridge = new AppBridge('my-plugin');
 * const isOpen = bridge.state('isOpen', false);
 *
 * // Convert to Svelte store
 * const isOpenStore = useBridgeState(isOpen);
 *
 * // In Svelte component:
 * // <button on:click={() => $isOpenStore = !$isOpenStore}>
 * //   {$isOpenStore ? 'Open' : 'Closed'}
 * // </button>
 * ```
 */
export declare function useBridgeState<T>(syncedState: SyncedState<T>): SvelteStore<T>;
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