import { Variables } from "graphql-request/dist/src/types";
import { AuthenticationService } from "../authentication/authentication.service";
import { DatabaseService } from "../database/database.service";
import { EnvironmentService } from "../environment/environment.service";
export declare class TerminalGraphQLClientService {
    private _authenticationService;
    private _databaseService;
    private _environmentService;
    private _graphQLClient;
    constructor(_authenticationService: AuthenticationService, _databaseService: DatabaseService, _environmentService: EnvironmentService);
    /**
     * initialising `TerminalGraphQLClientService`
     */
    init(): Promise<void>;
    /**
     * refresh the authentication token and save it in the database
     */
    renew(): Promise<void>;
    /**
     * Execute a graphql request
     * @param operation The operation
     * @param variables The variables
     */
    execute(operation: string, variables?: Variables): Promise<any>;
}