import type * as mongodb from 'mongodb';
import { MongoDBInstrumentationConfig } from './types';
import { InstrumentationBase } from '@opentelemetry/instrumentation';
/** mongodb instrumentation plugin for OpenTelemetry */
export declare class MongoDBInstrumentation extends InstrumentationBase<typeof mongodb> {
    protected _config: MongoDBInstrumentationConfig;
    constructor(_config?: MongoDBInstrumentationConfig);
    init(): any[];
    private _getPatches;
    /** Creates spans for common operations */
    private _getPatchOperation;
    /** Creates spans for command operation */
    private _getPatchCommand;
    /** Creates spans for find operation */
    private _getPatchFind;
    /** Creates spans for find operation */
    private _getPatchCursor;
    /**
     * Get the mongodb command type from the object.
     * @param command Internal mongodb command object
     */
    private _getCommandType;
    /**
     * Populate span's attributes by fetching related metadata from the context
     * @param span span to add attributes to
     * @param ns mongodb namespace
     * @param command mongodb internal representation of a command
     * @param topology mongodb internal representation of the network topology
     */
    private _populateAttributes;
    /**
     * Ends a created span.
     * @param span The created span to end.
     * @param resultHandler A callback function.
     */
    private _patchEnd;
}