export interface ErrorMessage {
    readonly fieldName?: string;
    readonly value?: any;
    readonly key: string;
    readonly message: string;
    readonly reason: string;
    readonly code?: number;
}
/**
 * Extracts an error form
 * @param error
 * @returns {ErrorMessage[]}
 * @constructor
 */
export declare function extractErrorMessages(error: any): ErrorMessage[];
/**
 * Creates a (potentially muliline) error message string.
 * @param error
 */
export declare function extractErrorString(error: any): string;