/**
 * This file was auto-generated by Fern from our API Definition.
 */
import * as environments from "../../../../environments";
import * as core from "../../../../core";
import * as Skyflow from "../../../index";
export declare namespace Authentication {
    interface Options {
        environment?: core.Supplier<environments.SkyflowEnvironment | string>;
        /** Specify a custom URL to connect the client to. */
        baseUrl?: core.Supplier<string>;
        token: core.Supplier<core.BearerToken>;
        fetcher?: core.FetchFunction;
    }
    interface RequestOptions {
        /** The maximum time to wait for a response in seconds. */
        timeoutInSeconds?: number;
        /** The number of times to retry the request. Defaults to 2. */
        maxRetries?: number;
        /** A hook to abort the request. */
        abortSignal?: AbortSignal;
        /** Additional headers to include in the request. */
        headers?: Record<string, string>;
    }
}
export declare class Authentication {
    protected readonly _options: Authentication.Options;
    constructor(_options: Authentication.Options);
    /**
     * <p>Generates a Bearer Token to authenticate with Skyflow. This method doesn't require the <code>Authorization</code> header.</p><p><b>Note:</b> For recommended ways to authenticate, see <a href='/api-authentication/'>API authentication</a>.</p>
     *
     * @param {Skyflow.V1GetAuthTokenRequest} request
     * @param {Authentication.RequestOptions} requestOptions - Request-specific configuration.
     *
     * @throws {@link Skyflow.BadRequestError}
     * @throws {@link Skyflow.UnauthorizedError}
     * @throws {@link Skyflow.NotFoundError}
     *
     * @example
     *     await client.authentication.authenticationServiceGetAuthToken({
     *         grant_type: "urn:ietf:params:oauth:grant-type:jwt-bearer",
     *         assertion: "eyLhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaXNzIjoiY29tcGFueSIsImV4cCI6MTYxNTE5MzgwNywiaWF0IjoxNjE1MTY1MDQwLCJhdWQiOiKzb21lYXVkaWVuY2UifQ.4pcPyMDQ9o1PSyXnrXCjTwXyr4BSezdI1AVTmud2fU3"
     *     })
     */
    authenticationServiceGetAuthToken(request: Skyflow.V1GetAuthTokenRequest, requestOptions?: Authentication.RequestOptions): core.HttpResponsePromise<Skyflow.V1GetAuthTokenResponse>;
    private __authenticationServiceGetAuthToken;
    protected _getAuthorizationHeader(): Promise<string>;
}