import { AxiosInstance } from 'axios';
import { OpenIdConfiguration } from './oidc-functions.js';
/**
 * Configuration for the Flow client.
 */
export interface FlowClientConfig {
    readonly authSureDomain: string;
    readonly client?: AxiosInstance;
}
/**
 * Base class for all Flow clients.
 */
export declare abstract class FlowClient {
    protected readonly authSureDomain: string;
    protected readonly client: AxiosInstance;
    protected readonly jwksUri: string;
    protected readonly authorizationEndpoint: string;
    protected readonly tokenEndpoint: string;
    protected readonly issuer: string;
    protected openIdConfiguration?: OpenIdConfiguration;
    constructor(config: FlowClientConfig);
    /**
     * Returns the OpenId configuration.
     */
    getConfiguration(): Promise<OpenIdConfiguration>;
}
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