import { AbstractControl, ValidationErrors } from '@angular/forms';
export declare class DokuValidators {
    /**
     * Validator that requires the control's value pass a safe string validation test.
     *
     * @usageNotes
     *
     * ### Validate that the field matches a valid DOKU safe string pattern
     *
     * ```typescript
     * const control = new FormControl('bad$', DokuValidators.safeString);
     *
     * console.log(control.errors); // {safeString: true}
     * ```
     *
     * @returns An error map with the `safeString` property
     * if the validation check fails, otherwise `null`.
     */
    static safeString(control: AbstractControl): ValidationErrors | null;
    /**
     * Validator that requires the control's value pass an email validation test.
     *
     * @usageNotes
     *
     * ### Validate that the field matches a valid DOKU email pattern
     *
     * ```typescript
     * const control = new FormControl('bad@', DokuValidators.email);
     *
     * console.log(control.errors); // {email: true}
     * ```
     *
     * @returns An error map with the `email` property
     * if the validation check fails, otherwise `null`.
     */
    static email(control: AbstractControl): ValidationErrors | null;
    /**
     * Validator that requires the control's value pass an hexadecimal color validation test.
     *
     * @usageNotes
     *
     * ### Validate that the field matches a valid DOKU hex color pattern
     *
     * ```typescript
     * const control = new FormControl('#1234', DokuValidators.hexColor);
     *
     * console.log(control.errors); // {hexColor: true}
     * ```
     *
     * @returns An error map with the `hexColor` property
     * if the validation check fails, otherwise `null`.
     */
    static hexColor(control: AbstractControl): ValidationErrors | null;
}