import { InjectionToken } from '@angular/core';
import * as i0 from "@angular/core";
export interface FormErrorMessages {
    required?: string;
    email?: string;
    minlength?: (err: {
        requiredLength: number;
        actualLength: number;
    }) => string;
    maxlength?: (err: {
        requiredLength: number;
        actualLength: number;
    }) => string;
    min?: (err: {
        min: number;
        actual: number;
    }) => string;
    max?: (err: {
        max: number;
        actual: number;
    }) => string;
    pattern?: string;
    [key: string]: unknown;
}
export declare const DEFAULT_FORM_ERROR_MESSAGES: FormErrorMessages;
export declare const NGX_FORM_ERROR_MESSAGES: InjectionToken<FormErrorMessages>;
export declare class NgxFormErrorService {
    private messages;
    setMessageTemplates(customMessages: Partial<FormErrorMessages>): void;
    resolveError(errorKey: string, errorValue: unknown): string;
    static ɵfac: i0.ɵɵFactoryDeclaration<NgxFormErrorService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<NgxFormErrorService>;
}