import { Data, SelectDataOptions, Context, Loader, LoaderFactory } from "../base";
export declare class ObjectLoader<T> implements Loader<T, Data | null> {
    private options;
    context?: Context | undefined;
    private toPrime?;
    private loader;
    private primedLoaders;
    private memoizedInitPrime;
    constructor(options: SelectDataOptions, context?: Context | undefined, toPrime?: ObjectLoaderFactory<T>[] | undefined);
    private initPrime;
    load(key: T): Promise<Data | null>;
    clearAll(): void;
    loadMany(keys: T[]): Promise<Data[]>;
    prime(data: Data): void;
}
export declare class ObjectLoaderFactory<T> implements LoaderFactory<T, Data | null> {
    options: SelectDataOptions;
    name: string;
    private toPrime;
    constructor(options: SelectDataOptions);
    createLoader(context?: Context): ObjectLoader<T>;
    addToPrime(factory: ObjectLoaderFactory<T>): void;
}