import { AbstractControl, ValidatorFn } from '@angular/forms';
import { FormlyFieldConfig } from '@ngx-formly/core';
export declare function phoneNumberValidator(dependent?: string): ValidatorFn;
export declare function customNameValidator(fieldName?: string): ValidatorFn;
export declare const customEmailValidator: (control: AbstractControl) => {
    [key: string]: string;
};
export declare function getValidationMessage(errors: any, placeholder?: string, additionalProperties?: any): string;
export declare function numberRangeValidator(range: {
    min: number;
    max: number;
}, type?: any): ValidatorFn;
export declare const requiredValidatorMessage: (error: any, field: FormlyFieldConfig) => string;