import type { TokenResponse } from "./types.js";
export interface TokenEndpointDeps {
    readonly fetchImpl?: typeof fetch | undefined;
    readonly validateUrl?: ((url: string) => URL) | undefined;
}
export interface ExchangeAuthorizationCodeParams {
    readonly tokenEndpoint: string;
    readonly code: string;
    readonly redirectUri: string;
    readonly clientId: string;
    readonly clientSecret?: string | undefined;
    readonly codeVerifier: string;
    readonly resource?: string | undefined;
}
export interface RefreshAccessTokenParams {
    readonly tokenEndpoint: string;
    readonly refreshToken: string;
    readonly clientId: string;
    readonly clientSecret?: string | undefined;
    readonly resource?: string | undefined;
    readonly scope?: string | undefined;
}
export declare function exchangeAuthorizationCode(params: ExchangeAuthorizationCodeParams, deps?: TokenEndpointDeps): Promise<TokenResponse>;
export declare function refreshAccessToken(params: RefreshAccessTokenParams, deps?: TokenEndpointDeps): Promise<TokenResponse>;