import type { Client } from "graphql-ws";
import { Observable } from "rxjs";
import type { FetchResult, Operation } from "@apollo/client/link";
import { ApolloLink } from "@apollo/client/link";
export declare class GraphQLWsLink extends ApolloLink {
    readonly client: Client;
    constructor(client: Client);
    request(operation: Operation): Observable<FetchResult>;
}
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