import { Observable } from 'rxjs';
import { SimpleChanges, OnChanges } from '@angular/core';
import { AbstractControl, Validator, AsyncValidatorFn } from '@angular/forms';
export declare class ValidSpaceNameValidatorDirective implements Validator, OnChanges {
    static readonly MIN_SPACE_NAME_LENGTH: number;
    static readonly MAX_SPACE_NAME_LENGTH: number;
    validSpaceName: boolean;
    private valFn;
    constructor();
    ngOnChanges(changes: SimpleChanges): void;
    validate(control: AbstractControl): Observable<{
        [key: string]: any;
    }>;
}
export declare function validSpaceNameValidator(): AsyncValidatorFn;