import { Aggregator as AggregatorBase } from "./aggregator";
import { Context, ProcessingMode } from "./core/_internal";
import { Cursor } from "./cursor";
import type { Source } from "./lazy";
import { Query as QueryBase } from "./query";
import type { AnyObject, Criteria, Options, Projection } from "./types";
import * as updater from "./updater";
export { Context, ProcessingMode } from "./core";
export declare class Query<T = AnyObject> extends QueryBase<T> {
    constructor(condition: Criteria<T>, options?: Partial<Options>);
}
export declare class Aggregator extends AggregatorBase {
    constructor(pipeline: AnyObject[], options?: Partial<Options>);
}
/**
 * Finds documents in a collection that match the specified criteria.
 *
 * @template R - The type of the documents in the collection.
 * @param collection - The source collection to search.
 * @param condition - The query criteria to filter the documents.
 * @param projection - Optional. Specifies the fields to include or exclude in the returned documents.
 * @param options - Optional. Additional options to customize the query behavior.
 * @returns A `Cursor` object that allows iteration over the matching documents.
 */
export declare function find<R = AnyObject, T = AnyObject>(collection: Source, condition: Criteria<T>, projection?: Projection<R>, options?: Partial<Options>): Cursor<R>;
/**
 * Performs an aggregation operation on the provided collection using the specified pipeline.
 *
 * @param collection - The input data source to aggregate.
 * @param pipeline - An array of aggregation stages to process the collection.
 * @param options - Optional settings to customize the aggregation behavior.
 * @returns The result of the aggregation as an array of objects.
 */
export declare function aggregate(collection: Source, pipeline: AnyObject[], options?: Partial<Options>): AnyObject[];
export declare function update<T extends AnyObject>(obj: T, modifier: updater.Modifier<T>, arrayFilters?: AnyObject[], condition?: Criteria<T>, options?: {
    cloneMode?: updater.CloneMode;
    queryOptions?: Partial<Options>;
}): string[];
export declare function updateMany<T extends AnyObject>(documents: T[], condition: Criteria<T>, modifer: updater.Modifier<T> | updater.PipelineStage[], updateConfig?: updater.UpdateConfig, options?: Partial<Options>): {
    matchedCount: number;
    modifiedCount: number;
};
export declare function updateOne<T extends AnyObject>(documents: T[], condition: Criteria<T>, modifier: updater.Modifier<T> | updater.PipelineStage[], updateConfig?: updater.UpdateConfig, options?: Partial<Options>): updater.UpdateResult;
declare const _default: {
    Aggregator: typeof Aggregator;
    Context: typeof Context;
    ProcessingMode: typeof ProcessingMode;
    Query: typeof Query;
    aggregate: typeof aggregate;
    find: typeof find;
    update: typeof update;
    updateMany: typeof updateMany;
    updateOne: typeof updateOne;
};
export default _default;