export interface CallerIdentity {
    UserId?: string;
    Account?: string;
    Arn?: string;
}
/**
 * STS (Security Token Service) management using direct API calls
 */
export declare class STSClient {
    private client;
    private region;
    constructor(region?: string, profile?: string);
    /**
     * Get information about the IAM identity whose credentials are used to call the operation
     */
    getCallerIdentity(): Promise<CallerIdentity>;
}
