export type FilterDocument<T> = {};
type Document = Record<string, any>;
type CollectionUpdateIFConditions = {
    field: string;
    values: any;
};
export declare class Collection<T> {
    private _list;
    constructor(list?: Array<T>);
    get size(): number;
    get items(): T[];
    add(doc: T): void;
    get(filter: Document): void;
    update(filter: Document, updater: Document): void;
    remove(filter: Document): void;
    isEmpty(): boolean;
    updateIf(conditions: CollectionUpdateIFConditions[]): void;
    updateAll(fn: (item: T, index: number, arr: T[]) => T): void;
    updateWith<I, K>(payload: I[], fn: (args: I) => K): void;
    lastItem(): T | undefined;
    firstItem(): T | undefined;
    findMany(filter: FilterDocument<T>): Collection<T>;
    for(predicate: (value: T) => void): Promise<boolean>;
    merge(value: Collection<T>): void;
    merge(value: T[]): void;
    merge(value: T): void;
}
export {};
//# sourceMappingURL=Collection.d.ts.map