import { OnChanges, OnInit, SimpleChanges } from '@angular/core';
import { AbstractControl, ValidationErrors, Validator } from '@angular/forms';
import * as i0 from "@angular/core";
export declare class RangeLengthValidator implements Validator, OnInit, OnChanges {
    rangeLength: number[] | undefined;
    private validator;
    private onChange;
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    validate(c: AbstractControl): ValidationErrors | null;
    registerOnValidatorChange(fn: () => void): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<RangeLengthValidator, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<RangeLengthValidator, "[rangeLength][formControlName],[rangeLength][formControl],[rangeLength][ngModel]", never, { "rangeLength": "rangeLength"; }, {}, never>;
}