import { ValidationRule } from 'devextreme-angular/common';
export declare function convertFararuValidationRuleToDevExtreamRule<T>(title: string, currentValues: T, validator: FararuDataGridValidatorInterface<T>): ValidationRule | null;
export type FararuDataGridValidatorInterface<T> = ({
    type: 'required' | 'range' | 'custom' | 'stringLength' | 'pattern' | 'async';
    message?: string | ((currentValues: T) => string);
} & ({
    type: 'required';
} | {
    type: 'range';
    min?: number;
    max?: number;
} | {
    type: 'custom';
    validationCallback: (currentValues: T, newValue: unknown) => boolean;
} | {
    type: 'stringLength';
    min?: number;
    max?: number;
} | {
    type: 'pattern';
    pattern: RegExp;
} | {
    type: 'async';
    validationCallback: (currentValues: T, newValue: unknown) => Promise<boolean>;
}));
export type ValidationEventResult = {
    isValid: boolean;
    errorText: string;
};