export interface IConfigValue {
    asBoolean(): boolean;
    asNumber(): number;
    asString(): string;
    getSource(): 'default' | 'static' | 'remote';
}
export declare class IConfigSettings {
    fetchTimeMillis: number;
    minimumFetchIntervalMillis: number;
}
export interface ConfigDefaults {
    [key: string]: number | string | boolean;
}
export interface IRemoteConfig {
    readonly fetchTimeMillis: number;
    readonly lastFetchStatus: 'success' | 'failure' | 'no_fetch_yet' | 'throttled';
    settings: IConfigSettings;
    activate(): Promise<boolean>;
    ensureInitialized(): Promise<void>;
    fetch(expirationDurationSeconds?: undefined | number): Promise<void>;
    fetchAndActivate(): Promise<boolean>;
    getAll(): Record<string, IConfigValue>;
    getBoolean(key: string): boolean;
    getNumber(key: string): number;
    getString(key: string): string;
    getValue(key: string): IConfigValue;
    reset(): Promise<void>;
    setDefaults(defaults: ConfigDefaults): Promise<void>;
    setDefaultsFromResource(resourceName: string): Promise<void>;
}