import { EntityRelation } from '../entity/entity-relation.entity';
import { Repository } from 'typeorm';
export declare class EntityRelationRepository {
    private readonly entityRelationRepository;
    constructor(entityRelationRepository: Repository<EntityRelation>);
    findBySourceEntityTypeAndTargetEntityType(source_entity_type: string, target_entity_type: string): Promise<EntityRelation | null>;
}