import { EndpointParameterInstructions } from "@aws-sdk/middleware-endpoint";
import { Command as $Command } from "@aws-sdk/smithy-client";
import { Handler, HttpHandlerOptions as __HttpHandlerOptions, MetadataBearer as __MetadataBearer, MiddlewareStack } from "@aws-sdk/types";
import { GetSessionTokenRequest, GetSessionTokenResponse } from "../models/models_0";
import { ServiceInputTypes, ServiceOutputTypes, STSClientResolvedConfig } from "../STSClient";
export interface GetSessionTokenCommandInput extends GetSessionTokenRequest {
}
export interface GetSessionTokenCommandOutput extends GetSessionTokenResponse, __MetadataBearer {
}
/**
 * <p>Returns a set of temporary credentials for an Amazon Web Services account or IAM user. The
 *          credentials consist of an access key ID, a secret access key, and a security token.
 *          Typically, you use <code>GetSessionToken</code> if you want to use MFA to protect
 *          programmatic calls to specific Amazon Web Services API operations like Amazon EC2 <code>StopInstances</code>.
 *          MFA-enabled IAM users would need to call <code>GetSessionToken</code> and submit an MFA
 *          code that is associated with their MFA device. Using the temporary security credentials
 *          that are returned from the call, IAM users can then make programmatic calls to API
 *          operations that require MFA authentication. If you do not supply a correct MFA code, then
 *          the API returns an access denied error. For a comparison of <code>GetSessionToken</code>
 *          with the other API operations that produce temporary credentials, see <a href="https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_request.html">Requesting
 *             Temporary Security Credentials</a> and <a href="https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_request.html#stsapi_comparison">Comparing the
 *             Amazon Web Services STS API operations</a> in the <i>IAM User Guide</i>.</p>
 *          <note>
 *             <p>No permissions are required for users to perform this operation. The purpose of the
 *                <code>sts:GetSessionToken</code> operation is to authenticate the user using MFA. You
 *             cannot use policies to control authentication operations. For more information, see
 *                <a href="https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_control-access_getsessiontoken.html">Permissions for GetSessionToken</a> in the
 *             <i>IAM User Guide</i>.</p>
 *          </note>
 *          <p>
 *             <b>Session Duration</b>
 *          </p>
 *          <p>The <code>GetSessionToken</code> operation must be called by using the long-term Amazon Web Services
 *          security credentials of the Amazon Web Services account root user or an IAM user. Credentials that are
 *          created by IAM users are valid for the duration that you specify. This duration can range
 *          from 900 seconds (15 minutes) up to a maximum of 129,600 seconds (36 hours), with a default
 *          of 43,200 seconds (12 hours). Credentials based on account credentials can range from 900
 *          seconds (15 minutes) up to 3,600 seconds (1 hour), with a default of 1 hour. </p>
 *          <p>
 *             <b>Permissions</b>
 *          </p>
 *          <p>The temporary security credentials created by <code>GetSessionToken</code> can be used
 *          to make API calls to any Amazon Web Services service with the following exceptions:</p>
 *          <ul>
 *             <li>
 *                <p>You cannot call any IAM API operations unless MFA authentication information is
 *                included in the request.</p>
 *             </li>
 *             <li>
 *                <p>You cannot call any STS API <i>except</i>
 *                   <code>AssumeRole</code> or <code>GetCallerIdentity</code>.</p>
 *             </li>
 *          </ul>
 *          <note>
 *             <p>We recommend that you do not call <code>GetSessionToken</code> with Amazon Web Services account
 *             root user credentials. Instead, follow our <a href="https://docs.aws.amazon.com/IAM/latest/UserGuide/best-practices.html#create-iam-users">best practices</a> by
 *             creating one or more IAM users, giving them the necessary permissions, and using IAM
 *             users for everyday interaction with Amazon Web Services. </p>
 *          </note>
 *          <p>The credentials that are returned by <code>GetSessionToken</code> are based on
 *          permissions associated with the user whose credentials were used to call the operation. If
 *             <code>GetSessionToken</code> is called using Amazon Web Services account root user credentials, the
 *          temporary credentials have root user permissions. Similarly, if
 *             <code>GetSessionToken</code> is called using the credentials of an IAM user, the
 *          temporary credentials have the same permissions as the IAM user. </p>
 *          <p>For more information about using <code>GetSessionToken</code> to create temporary
 *          credentials, go to <a href="https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_request.html#api_getsessiontoken">Temporary
 *             Credentials for Users in Untrusted Environments</a> in the
 *             <i>IAM User Guide</i>. </p>
 * @example
 * Use a bare-bones client and the command you need to make an API call.
 * ```javascript
 * import { STSClient, GetSessionTokenCommand } from "@aws-sdk/client-sts"; // ES Modules import
 * // const { STSClient, GetSessionTokenCommand } = require("@aws-sdk/client-sts"); // CommonJS import
 * const client = new STSClient(config);
 * const command = new GetSessionTokenCommand(input);
 * const response = await client.send(command);
 * ```
 *
 * @see {@link GetSessionTokenCommandInput} for command's `input` shape.
 * @see {@link GetSessionTokenCommandOutput} for command's `response` shape.
 * @see {@link STSClientResolvedConfig | config} for STSClient's `config` shape.
 *
 */
export declare class GetSessionTokenCommand extends $Command<GetSessionTokenCommandInput, GetSessionTokenCommandOutput, STSClientResolvedConfig> {
    readonly input: GetSessionTokenCommandInput;
    static getEndpointParameterInstructions(): EndpointParameterInstructions;
    constructor(input: GetSessionTokenCommandInput);
    /**
     * @internal
     */
    resolveMiddleware(clientStack: MiddlewareStack<ServiceInputTypes, ServiceOutputTypes>, configuration: STSClientResolvedConfig, options?: __HttpHandlerOptions): Handler<GetSessionTokenCommandInput, GetSessionTokenCommandOutput>;
    private serialize;
    private deserialize;
}
