import type { NonaClientOptions, NonaConfigValues, NonaConfigValue, NonaGetAllValuesOptions, NonaRequestOptions } from "./types.js";
export interface NonaClient {
    readonly environmentId: string;
    readonly useReleases: boolean;
    readonly releaseVersion?: string;
    getConfigValue(key: string, options?: NonaRequestOptions): Promise<NonaConfigValue>;
    getAllValues(options?: NonaGetAllValuesOptions): Promise<NonaConfigValues>;
    tryGetConfigValue(key: string, options?: NonaRequestOptions): Promise<NonaConfigValue | null>;
    getStringValue(key: string, options?: NonaRequestOptions): Promise<string>;
    getJsonValue<T>(key: string, options?: NonaRequestOptions): Promise<T>;
    invalidateTtlCache(key: string, options?: NonaRequestOptions): boolean;
    clearTtlCache(): void;
}
export declare function createNonaClient(baseUrl: string | URL, options: Omit<NonaClientOptions, "baseUrl">): NonaClient;
export declare function createNonaClient(options: NonaClientOptions): NonaClient;
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