import type { EntityId, EntityState } from '../entity.types';
/**
 * Returns the entity for a given id, if no id is provided it returns the first entity.
 *
 * @param id Optional entity id.
 * @return Entity represented by the id, or the first entity.
 */
export declare const getDefaultedEntity: (id?: EntityId) => <EntityType>(state: EntityState<EntityType>) => EntityType | undefined;