import { LitElement, PropertyValues } from 'lit';
import { Core, CytoscapeOptions, EdgeDefinition, LayoutOptions, NodeDefinition } from 'cytoscape';
export declare abstract class CytoscapeBase extends LitElement {
    options: CytoscapeOptions;
    set elements(allElements: Array<NodeDefinition | EdgeDefinition>);
    selectedNodesIds: Array<string>;
    cy: Core;
    _elements: Array<NodeDefinition | EdgeDefinition> | undefined;
    _graphElement: HTMLElement;
    firstUpdated(): void;
    setupCytoscape(): void;
    updated(changedValues: PropertyValues): void;
    render(): import("lit-html").TemplateResult<1>;
    abstract layout(): LayoutOptions;
    static styles: import("lit").CSSResult[];
}