import type { BaseClientOptions, BaseRequestOptions } from "../../../../BaseClient.js";
import { type NormalizedClientOptions } from "../../../../BaseClient.js";
import * as core from "../../../../core/index.js";
import type * as Brevo from "../../../index.js";
export declare namespace OAuthClient {
    type Options = BaseClientOptions;
    interface RequestOptions extends BaseRequestOptions {
    }
}
export declare class OAuthClient {
    protected readonly _options: NormalizedClientOptions<OAuthClient.Options>;
    constructor(options?: OAuthClient.Options);
    /**
     * Exchanges an app's client_id/client_secret for a short-lived access token using the OAuth 2.0 client_credentials grant (RFC 6749 §4.4). Tokens are valid for about one hour; there is no refresh token.
     *
     * @param {Brevo.GetOAuthM2MTokenRequest} request
     * @param {OAuthClient.RequestOptions} requestOptions - Request-specific configuration.
     *
     * @throws {@link errors.BrevoError}
     * @throws {@link errors.BrevoTimeoutError}
     *
     * @example
     *     await client.oAuth.getOAuthM2MToken({
     *         client_id: "client_id",
     *         client_secret: "client_secret"
     *     })
     */
    getOAuthM2MToken(request: Brevo.GetOAuthM2MTokenRequest, requestOptions?: OAuthClient.RequestOptions): core.HttpResponsePromise<Brevo.GetOAuthM2MTokenResponse>;
    private __getOAuthM2MToken;
}