export interface _MetadataWithId {
    /**
     * Creation time
     */
    readonly created?: Date;
    /**
     * Update time
     */
    readonly updated?: Date;
    /**
     * Unique identifier
     */
    readonly id?: string;
}
export interface MetadataWithId extends _MetadataWithId {
    _builtin_original?: _MetadataWithId;
    _remove_builtin_extensions?: () => void;
}
export declare class MetadataWithIdImpl implements _MetadataWithId {
    _builtin_original?: _MetadataWithId;
    readonly created: Date | undefined;
    readonly updated: Date | undefined;
    readonly id: string | undefined;
    constructor(base: _MetadataWithId);
    _remove_builtin_extensions(): void;
}
export declare function newMetadataWithIdImpl(base: _MetadataWithId): MetadataWithIdImpl;