import { GraphQLFormattedError } from 'graphql';
import { Observer } from 'rxjs';
import { ApolloLink, ErrorLike } from '@apollo/client';
export type Operation = ApolloLink.Operation & {
    clientName: string;
};
export declare class TestOperation<T = {
    [key: string]: any;
}> {
    readonly operation: Operation;
    private readonly observer;
    constructor(operation: Operation, observer: Observer<ApolloLink.Result<T>>);
    flush(result: ApolloLink.Result<T> | ErrorLike): void;
    complete(): void;
    flushData(data: T | null): void;
    networkError(error: ErrorLike): void;
    graphqlErrors(errors: GraphQLFormattedError[]): void;
}