import { type AppStateCompareAndSetOperation } from "./store.js";
export declare function readAppState(key: string): Promise<Record<string, unknown> | null>;
export declare function writeAppState(key: string, value: Record<string, unknown>): Promise<void>;
export declare function deleteAppState(key: string): Promise<boolean>;
export declare function compareAndSetAppState(key: string, expectedValue: Record<string, unknown> | null, nextValue: Record<string, unknown> | null): Promise<boolean>;
export declare function compareAndSetManyAppState(operations: readonly AppStateCompareAndSetOperation[]): Promise<boolean>;
export declare function listAppState(prefix: string): Promise<Array<{
    key: string;
    value: Record<string, unknown>;
}>>;
export declare function deleteAppStateByPrefix(prefix: string): Promise<number>;
export declare function normalizeBrowserTabId(value: unknown): string | null;
export declare function getCurrentRequestBrowserTabId(): string | null;
export declare function appStateKeyForBrowserTab(key: string, browserTabId: unknown): string;
export declare function readAppStateForCurrentTab(key: string, options?: {
    fallbackToGlobal?: boolean;
}): Promise<Record<string, unknown> | null>;
export declare function writeAppStateForCurrentTab(key: string, value: Record<string, unknown>): Promise<void>;