export declare function getAwsCredentials(region: string, impersonationPath?: string[]): Promise<import("@smithy/types").AwsCredentialIdentity>;
export declare function getAwsRegion(): Promise<string>;
export declare function getStsHostname(region: string): string;
export declare function getAwsAttestationToken(useOutboundToken?: boolean, impersonationPath?: string[]): Promise<string>;