import { ValidationArguments, ValidationOptions } from 'class-validator';
import { ClientSession } from 'mongodb';
import { EntityInterface } from '../entity/interfaces';
import { EntityManager } from '../entity/manager';
import { RelationshipMetadataOptions, RelationshipTypeDescriptor } from './interfaces';
export type WithValidRelationship = (object: any, relationship: any, em: EntityManager) => Promise<string | true>;
export interface IsValidRelationshipOptions extends ValidationOptions {
    with?: WithValidRelationship;
}
export type WithRelationshipTest = (object: any, relationship: any, em: EntityManager, session?: ClientSession) => Promise<string | true>;
export interface IsValidRelationshipValidationArguments extends ValidationArguments {
    constraints: [WithRelationshipTest?];
}
export declare function IsValidRelationship(validationOptions?: IsValidRelationshipOptions): (object: any, propertyName: string) => void;
export declare function Relationship<R extends EntityInterface = any>(options: RelationshipMetadataOptions<R> | RelationshipTypeDescriptor<R> | string): <TFunction extends Function, Y>(target: TFunction | object, propertyKey?: string | symbol, descriptor?: TypedPropertyDescriptor<Y>) => void;
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