/**
 * The MIT License
 * Copyright © 2021-present KuFlow S.L.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
import { type NativeConnection } from '@temporalio/worker';
import type { KuFlowTemporalConnectionOptions } from './kuflow-temporal-connection-options';
export interface KuFlowAuthorizationTokenProviderBackoff {
    /**
     * Milliseconds between errors
     */
    sleep?: number;
    /**
     * Maximum sleep in milliseconds
     */
    maxSleep?: number;
    /**
     * Exponential rate applied if the error persists
     */
    exponentialRate?: number;
}
export interface KuFlowAuthorizationTokenProviderParams {
    temporalConnection: NativeConnection;
    options: KuFlowTemporalConnectionOptions;
}
export declare class KuFlowAuthorizationTokenProvider {
    private readonly temporalConnection;
    private readonly options;
    private readonly backoff;
    private consecutiveFailures;
    private refreshTimeout?;
    static instance(params: KuFlowAuthorizationTokenProviderParams): KuFlowAuthorizationTokenProvider;
    private constructor();
    close(): Promise<void>;
    private scheduleAuthorizationTokenRenovation;
    private refreshAuthorizationTokenRenovation;
    private createAuthentication;
}