import { ValidationArguments, ValidationOptions, ValidatorConstraintInterface } from 'class-validator';
import { BaseEntity } from 'typeorm';
import { CustomCondition } from '../interfaces/custom-condition.interface';
export declare class UniqueValidator implements ValidatorConstraintInterface {
    validate(value: any, args: ValidationArguments): Promise<boolean>;
}
export declare function Unique(table: {
    new (): BaseEntity;
}, column: string, caseInsensitive?: boolean, customs?: CustomCondition[], validationOptions?: ValidationOptions): (object: any, propertyName: string) => void;