import { Entity } from '../../api/types';
declare type EntityReferenceFunction<E extends Entity, R> = (entity: E) => R;
export declare type ReferableValue<T> = T | EntityReference<Entity, T>;
export interface EntityReference<E = Entity, R = any> {
    getValue: (entity: E) => R;
}
export declare function isEntityReference(value: any): value is EntityReference;
export declare class InlineEntityReference<E = Entity, R = any> implements EntityReference<E, R> {
    private fn;
    constructor(fn: EntityReferenceFunction<E, R>);
    getValue(entity: E): R;
}
export {};