import { ResultSpan } from '../ResultSpan';
import { IResultSpanAggregate } from './IResultSpanAggregate';
/**
 * Service class for aggregating statistics from ResultSpans using a collection
 * of IResultSpanAggregate implementations.
 */
export declare class ResultSpanAggregator {
    private _aggregators;
    /**
     * Creates a new instance of ResultSpanAggregator.
     *
     * @param aggregators - Optional initial collection of aggregators
     */
    constructor(aggregators?: IResultSpanAggregate[]);
    /**
     * Gets the current collection of aggregators.
     */
    get aggregators(): IResultSpanAggregate[];
    /**
     * Adds an aggregator to the collection.
     *
     * @param aggregator - The aggregator to add
     * @returns This instance for method chaining
     */
    addAggregator(aggregator: IResultSpanAggregate): ResultSpanAggregator;
    /**
     * Adds multiple aggregators to the collection.
     *
     * @param aggregators - The aggregators to add
     * @returns This instance for method chaining
     */
    addAggregators(aggregators: IResultSpanAggregate[]): ResultSpanAggregator;
    /**
     * Removes an aggregator from the collection by its ID.
     *
     * @param id - The ID of the aggregator to remove
     * @returns This instance for method chaining
     */
    removeAggregator(id: string): ResultSpanAggregator;
    /**
     * Clears all aggregators from the collection.
     *
     * @returns This instance for method chaining
     */
    clearAggregators(): ResultSpanAggregator;
    /**
     * Processes a collection of ResultSpan objects using all registered aggregators.
     *
     * @param spans - Collection of ResultSpan objects to aggregate
     * @returns An object containing all aggregated statistics keyed by aggregator ID
     */
    aggregate(spans: ResultSpan[]): Record<string, any>;
}