import { OnInit } from '@angular/core';
import { Validator, AbstractControl } from '@angular/forms';
export declare class WhiteSpaceValidatorDirective implements Validator, OnInit {
    private validator;
    ngOnInit(): void;
    validate(c: AbstractControl): {
        [key: string]: any;
    };
}
export declare class EmptyStringValidatorDirective implements Validator, OnInit {
    private validator;
    ngOnInit(): void;
    validate(c: AbstractControl): {
        [key: string]: any;
    };
}
export declare class IsNumberValidatorDirective implements Validator, OnInit {
    private validator;
    ngOnInit(): void;
    validate(c: AbstractControl): {
        [key: string]: any;
    };
}
export declare class IsInRangeValidatorDirective implements Validator, OnInit {
    minValue: number;
    maxValue: number;
    private validator;
    ngOnInit(): void;
    validate(c: AbstractControl): {
        [key: string]: any;
    };
}
export declare class MaxValidatorDirective implements Validator, OnInit {
    max: number;
    private validator;
    ngOnInit(): void;
    validate(c: AbstractControl): {
        [key: string]: any;
    };
}
export declare class MinValidatorDirective implements Validator, OnInit {
    min: number;
    private validator;
    ngOnInit(): void;
    validate(c: AbstractControl): {
        [key: string]: any;
    };
}