import { SecureDelegation } from './SecureDelegation.mjs';
/**
 *
 *  Holds the security metadata for user-based access control and encryption of entities.
 *  Maps access control key hashes to their corresponding secure delegations.
 *  /
 */
export declare class SecurityMetadata {
    /**
     *
     *  A map from hex-encoded SHA-256 hash of an access control key to its corresponding secure
     *  delegation.
     */
    secureDelegations: {
        [key: string]: SecureDelegation;
    };
    constructor(partial: Partial<SecurityMetadata> & Pick<SecurityMetadata, "secureDelegations">);
    toJSON(): object;
    static fromJSON(json: any, ignoreUnknownKeys?: boolean, path?: Array<string>): SecurityMetadata;
}