import type { IAction, IActorArgs, IActorOutput, Mediate, IActorTest } from '@comunica/core';
import { Actor } from '@comunica/core';
import type { IJoinEntryWithMetadata } from '@comunica/types';
/**
 * A comunica actor for rdf-join-entries-sort events.
 *
 * Actor types:
 * * Input:  IActionRdfJoinEntriesSort:      Join entries.
 * * Test:   IActorTest:                     Test result.
 * * Output: IActorRdfJoinEntriesSortOutput: The sorted join entries.
 *
 * @see IActionRdfJoinEntriesSort
 * @see IActorTest
 * @see IActorRdfJoinEntriesSortOutput
 */
export declare abstract class ActorRdfJoinEntriesSort<TS = undefined> extends Actor<IActionRdfJoinEntriesSort, IActorRdfJoinEntriesSortTest, IActorRdfJoinEntriesSortOutput, TS> {
    /**
     * @param args -
     *   \ @defaultNested {<default_bus> a <cc:components/Bus.jsonld#Bus>} bus
     *   \ @defaultNested {Sorting join entries failed: none of the configured actors were able to sort} busFailMessage
     */
    constructor(args: IActorRdfJoinEntriesSortArgs<TS>);
}
export interface IActionRdfJoinEntriesSort extends IAction {
    /**
     * The array of streams to join.
     */
    entries: IJoinEntryWithMetadata[];
}
export interface IActorRdfJoinEntriesSortTest extends IActorTest {
    /**
     * A value between 0 and 1 (both inclusive) that defines the accuracy of this actor's sorting.
     * A higher value means a higher accuracy.
     */
    accuracy: number;
}
export interface IActorRdfJoinEntriesSortOutput extends IActorOutput {
    /**
     * The array of sorted streams.
     */
    entries: IJoinEntryWithMetadata[];
}
export type IActorRdfJoinEntriesSortArgs<TS = undefined> = IActorArgs<IActionRdfJoinEntriesSort, IActorRdfJoinEntriesSortTest, IActorRdfJoinEntriesSortOutput, TS>;
export type MediatorRdfJoinEntriesSort = Mediate<IActionRdfJoinEntriesSort, IActorRdfJoinEntriesSortOutput>;