import { ILogger, ReactNativeStorageData, RemoteConfigInfo, RemoteConfigStorage, Storage } from '@amplitude/analytics-core';
/**
 * Remote config storage backed by a caller-provided `Storage` implementation.
 * Used on React Native, where the host app supplies AsyncStorage or its own
 * persistence layer instead of `localStorage`.
 */
export declare class RemoteConfigCustomStorage implements RemoteConfigStorage {
    private readonly logger;
    private readonly storage;
    private readonly key;
    constructor(apiKey: string, logger: ILogger, storage: Storage<ReactNativeStorageData>);
    fetchConfig(): Promise<RemoteConfigInfo>;
    setConfig(config: RemoteConfigInfo): Promise<boolean>;
}
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