import { Connection } from "../api/contract/Step";
import ViewStep from "../SERVER/Version/contrat/ViewStep";
import Response from "../api/contract/Response";
import { Request } from "../api";
export declare class ClientSessionStorage {
    constructor();
    putSessionId(sessionId: string): void;
    getSessionId(): string;
}
export declare class HttpClient {
    constructor();
    post(request: Request): Promise<string>;
    put(request: Request): Promise<string>;
}
export declare class ClientNavigation {
    httpClient: HttpClient;
    sessionStorage: ClientSessionStorage;
    responseBuffer: Response;
    navigationHistory: string[];
    private clearNavigationHistory;
    private addStepTONavigationHistory;
    private backInNavigationHistory;
    hasBackNavigation(): void;
    constructor(httpClient: HttpClient, sessionStorage: ClientSessionStorage);
    private isObjectEmpty;
    getElementByKey(obj: Record<string, any>, key: string): any | undefined;
    buildResponseFromJSON(json: string): Response;
    private fetchMiddleend;
    navigate(connection: Connection, output: any, fetchingCallback: (isFetching: boolean) => {}): Promise<ViewStep>;
    navigateBack(): Promise<ViewStep>;
}