/// <reference types="node" />
/**
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [https://neo4j.com]
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { TransformStreamDefaultController, Transformer } from "./node/stream";
import { Counters, NotificationShape, ProfiledQueryPlan, RawQueryError, RawQueryValue } from "./types.codec";
export type HeaderEvent = {
    $event: 'Header';
    _body: {
        fields?: string[];
    };
};
export type RecordEvent = {
    $event: 'Record';
    _body: RawQueryValue[];
};
export type SummaryEvent = {
    $event: 'Summary';
    _body: {
        notifications?: NotificationShape[];
        counters?: Counters;
        bookmarks?: string[];
        profiledQueryPlan?: ProfiledQueryPlan;
        queryPlan?: ProfiledQueryPlan;
    };
};
export type ErrorEvent = {
    $event: 'Error';
    _body: RawQueryError[];
};
export type Event = HeaderEvent | RecordEvent | SummaryEvent | ErrorEvent;
export declare class QueryApiEventTransformer implements Transformer<string, Event> {
    transform(chunk: string, controller: TransformStreamDefaultController<Event>): void;
}