import type { IApiControllerProperties } from '../../../interface/decorator/api/index';
import type { TApiControllerMethod } from '../../../type/class/index';
import type { TApiControllerGetListQuery, TApiControllerPropertiesRouteBaseRequestRelations } from '../../../type/decorator/api/controller/index';
import type { DeepPartial } from "typeorm";
/**
 * Manages loading related entities when processing API requests.
 * Determines which relations to load based on configuration strategy (MANUAL or AUTO),
 * finds the appropriate service for each relation, and loads the related entities.
 * @param {TApiControllerMethod<E>} controllerMethod - The controller method with access to service instances
 * @param {IApiControllerProperties<E>} properties - Controller configuration properties
 * @param {TApiControllerPropertiesRouteBaseRequestRelations<E> | undefined} relationConfig - Configuration for relation loading
 * @param {DeepPartial<E> | Partial<E> | TApiControllerGetListQuery<E>} parameters - The request parameters containing relation IDs
 * @returns {Promise<void>} A promise that resolves when all relations are loaded
 * @throws {BadRequestException} When an invalid relation ID is provided
 * @throws {Error} When service configuration is invalid or services are not found
 * @template E - The entity type
 * @template R - The route type
 */
export declare function ApiControllerHandleRequestRelations<E>(controllerMethod: TApiControllerMethod<E>, properties: IApiControllerProperties<E>, relationConfig: TApiControllerPropertiesRouteBaseRequestRelations<E> | undefined, parameters: DeepPartial<E> | Partial<E> | TApiControllerGetListQuery<E>): Promise<void>;