export interface Config {
    authorization_endpoint: string;
    client_id: string;
    code_challenge_method: string;
    code_verifier_length: number;
    me: string;
    redirect_uri: string;
    scopes?: string[];
    state: string;
}
/**
 * Builds the URL for the authorization endpoint.
 *
 * In the request to the authorization endpoint, the query parameter `scope` is
 * **optional**. If the IndieAuth client omits it, the authorization server MUST
 * NOT issue an access token in exchange of an authorization code, and should
 * instead return the profile URL. This means that the user will still be able
 * to authenticate using the request, but the IndieAuth client will not be
 * granted any scope (i.e. the user will not be authorized).
 *
 * @see [Authorization - IndieAuth spec](https://indieauth.spec.indieweb.org/#authorization)
 * @see [Authorization Request - IndieAuth spec](https://indieauth.spec.indieweb.org/#authorization-request)
 */
export declare const authorizationRequestUrl: (config: Config) => {
    redirect_url: string;
    code_verifier: string;
    state: string;
};
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