import { IDataSourceProvider } from "../../interfaces/IDataSourceProvider";
import { ISimpleConfig } from "@golemio/core/dist/helpers/configuration/ISimpleConfig";
import { IDataSource } from "@golemio/core/dist/integration-engine";
import { ISmart4CityGraphQLReponse } from "./ISmart4CityGraphQLReponse";
export declare class Smart4CityGraphQLDataSource implements IDataSourceProvider<ISmart4CityGraphQLReponse> {
    private config;
    private token;
    private tokenExpireAt;
    private readonly TOKEN_REFRESH_BUFFER_SECONDS;
    private readonly GRANT_TYPE;
    private credentialInfo;
    private readonly QUERY;
    constructor(config: ISimpleConfig);
    private refreshToken;
    getToken(): Promise<string>;
    getDataSource(token: string): IDataSource<ISmart4CityGraphQLReponse>;
}