export interface ErrorLike {
    message: string;
    code?: string;
}
export declare const isErrorLike: (val: any) => val is ErrorLike;
/**
 * Ensures a value is a proper Error, copying all properties if needed
 */
export declare const asError: (err: any) => Error;
/**
 * An Error that aggregates multiple errors
 */
interface AggregateError extends Error {
    name: 'AggregateError';
    errors: Error[];
}
/**
 * DEPRECATED: use dataOrThrowErrors instead
 * Creates an aggregate error out of multiple provided error likes
 *
 * @param errors The errors or ErrorLikes to aggregate
 */
export declare const createAggregateError: (errors?: ErrorLike[]) => AggregateError;
/**
 * Improves error messages in case of ajax errors
 */
export declare const normalizeAjaxError: (err: any) => void;
export {};
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