import { IValidationErrorDetail } from '@rocketmakers/validation/lib/ValidationErrors';
export declare abstract class ApiErrorBase<TAppCode extends string = string> extends Error {
    appCode: TAppCode;
    developerMessage?: string | undefined;
    constructor(appCode: TAppCode, message: string, developerMessage?: string | undefined);
}
export declare class ValidationError extends ApiErrorBase<'ValidationError'> {
    errors: IValidationErrorDetail[];
    constructor(errors: IValidationErrorDetail[], developerMessage?: string);
}
export declare function prettifyValidationError(err: ValidationError): string;
export declare function handleError(rawError: any): void;