/**
 * OAuth 2.0 Client Credentials grant for Splitwise.
 *
 * This is the simplest server-to-server flow: exchange your app's client_id
 * and client_secret for an access token that acts on behalf of the app owner.
 */
import { type PostTokenRequestOptions } from './internal.js';
import type { ClientCredentialsParams, OAuthToken } from './types.js';
export declare function fetchClientCredentialsToken(params: ClientCredentialsParams, options?: PostTokenRequestOptions): Promise<OAuthToken>;
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