import { Observable } from 'rxjs';
import { AjaxResponse } from 'rxjs/ajax';
/**
 *
 * Retries failed HTTP requests.
 *
 * @param delayMs delay in milliseconds before the request is retried.
 * @param maxRetries maximum number of retries.
 * @param retryOnErrorStatus HTTP error status codes for which the request is retried.
 * @param logError if true, error is written to the console error log.
 *
 * @category Internal
 */
export declare function retryOnError(delayMs: number, maxRetries: number, retryOnErrorStatus: number[], logError: boolean): (src: Observable<AjaxResponse<any>>) => Observable<AjaxResponse<any>>;
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