import { KeyInfo, Signature } from './helpers/saml-types';
export declare namespace SAMLMetadata {
    interface Root {
        $: {
            ID: string;
            entityID: string;
        };
        Signature: Signature[];
        IDPSSODescriptor: {
            $: {
                protocolSupportEnumeration: string;
            };
            KeyDescriptor: {
                $: {
                    use: 'signing' | 'encryption';
                };
                KeyInfo: [KeyInfo];
            }[];
            SingleLogoutService: Service[];
            SingleSignOnService: Service[];
        }[];
    }
    interface Service {
        $: {
            Binding: string;
            Location: string;
        };
    }
}
interface Metadata {
    identityProvider: {
        id: string;
        signature: {
            allowedCertificates: string[];
            algorithm: 'sha256' | 'sha512';
        };
        redirectLoginUrl: string;
        postLoginUrl: string;
    };
}
export declare function extract(xml: string): Promise<Metadata>;
export {};