import { type Server as HttpServer } from 'node:http';
import type { GraphileConfig } from 'graphile-config';
import type { GraphQLSchema } from 'graphql';
import { type Client as GqlWsClient } from 'graphql-ws';
import { WebSocketServer } from 'ws';
export interface WsTestServerInput {
    schema: GraphQLSchema;
    resolvedPreset: GraphileConfig.ResolvedPreset;
    pgSubscriber: unknown;
    pgSubscriberKey?: string;
    buildPgSettings?: (connectionParams: Record<string, string>) => Record<string, string> | undefined;
}
export interface WsTestServer {
    serverUrl: string;
    httpServer: HttpServer;
    wss: WebSocketServer;
    createClient(connectionParams?: Record<string, unknown>): GqlWsClient;
    dispose(): Promise<void>;
}
export declare function createWsTestServer(input: WsTestServerInput): Promise<WsTestServer>;