import { UntypedFormControl, ValidatorFn } from '@angular/forms';
export declare class CustomValidator {
    /** It validates if a formcontrol value matches with another one */
    static match(controlToCompare: UntypedFormControl): ValidatorFn;
    /** It validates if a controlToCompare value is presented in values and the control value is valid */
    static matchValues(controlToCompare: UntypedFormControl, values: Array<number>): ValidatorFn;
    /** It validates required if the control has the value  */
    static requiredIf(controlToCompare: UntypedFormControl, value: any): ValidatorFn;
    /** It validates if the control date value is older than another one */
    static mindate(controlToCompare: UntypedFormControl): ValidatorFn;
    /** It validates if the control date value is younger than another one */
    static maxdate(controlToCompare: UntypedFormControl): ValidatorFn;
    /** It validates if a formcontrol value matches with another one */
    static number(): ValidatorFn;
    static validNumberByCheck(controlCheckCompare: UntypedFormControl): ValidatorFn;
    static emailValidator(control: any): {
        invalidEmailAddress: boolean;
    };
}