export interface OptionalContentConfig {
    name: any;
    creator: any;
    _order: any;
    _groups: Map<any, any>;
    _evaluateVisibilityExpression(array: any): any;
    isVisible(group: any): any;
    setVisibility(id: any, visible?: boolean): void;
    getOrder(): any;
    getGroups(): any;
    getGroup(id: any): any;
}
export interface OptionalContentGroup {
    visible: boolean;
    name: string;
    intent: any;
}
export interface PdfLayer {
    layerId: string;
    name: string;
    visible: boolean;
}
/**
 * Lists the layers in the order of the PDF file, including the layers of nested groups.
 * `getOrder()` yields layer ids and, for a group, an object with the `order` of its members.
 */
export declare function listPdfLayers(optionalContentConfig: OptionalContentConfig): Array<PdfLayer>;