import { FetchingOptions } from '@epam/uui-core';
import { DbRef } from './DbRef';
import { DbPatch, DbTablesSet, LoadingState, ILoadingTracker } from './types';
export interface LoaderOptions<TTables extends DbTablesSet<TTables>, TResult, TRequest> {
    api: (request: TRequest, fetchingOptions: FetchingOptions) => Promise<TResult>;
    convertToPatch?: (result: TResult) => DbPatch<TTables>;
    postProcess?: (patch: DbPatch<TTables>) => DbPatch<TTables>;
    clientToServerRequest?: (request: TRequest) => TRequest;
}
export interface LoaderResult<TRequest> extends LoadingState<TRequest> {
    promise: Promise<void>;
    reload: () => void;
}
export declare class Loader<TTables extends DbTablesSet<TTables>, TResult, TRequest> {
    private dbRef;
    private getTracker;
    private options;
    private currentRequests;
    loaded: ILoadingTracker<TRequest, TResult>;
    private loadedAndLoading;
    constructor(dbRef: DbRef<TTables, any>, getTracker: () => ILoadingTracker<TRequest, TResult>, options: LoaderOptions<TTables, TResult, TRequest>);
    private loadImpl;
    load: (inputRequest: TRequest, fetchingOptions?: FetchingOptions) => LoaderResult<TRequest>;
}
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