import { Entity } from './entity';
export declare type TargetFilterKey = string | string[];
export declare type TargetEntityProperties = Partial<Entity>;
/**
 * Relationship direction.
 * `FORWARD` is from source to target.
 * `REVERSE` is from target to source.
 */
export declare enum RelationshipDirection {
    FORWARD = "FORWARD",
    REVERSE = "REVERSE"
}