export interface ClientAppStateReadOptions {
    signal?: AbortSignal;
}
export interface ClientAppStateWriteOptions {
    keepalive?: boolean;
    requestSource?: string;
    signal?: AbortSignal;
}
export declare function isClientAppStateMutationPending(key: string): boolean;
export interface ClientAppStateBatch {
    values: Record<string, unknown>;
    missing: string[];
}
export declare function readClientAppStateMany(keys: readonly string[], options?: ClientAppStateReadOptions): Promise<ClientAppStateBatch>;
export declare function readClientAppState<T = unknown>(key: string, options?: ClientAppStateReadOptions): Promise<T | null>;
export declare function writeClientAppState<T = unknown>(key: string, value: T, options?: ClientAppStateWriteOptions): Promise<T>;
export declare function compareAndSetClientAppState(key: string, expected: Record<string, unknown> | null, next: Record<string, unknown> | null, options?: ClientAppStateWriteOptions): Promise<boolean>;
export declare function deleteClientAppState(key: string, options?: ClientAppStateWriteOptions): Promise<void>;
export declare function setClientAppState<T = unknown>(key: string, value: T | null | undefined, options?: ClientAppStateWriteOptions): Promise<T | null>;