import { SubgraphEventMap } from '../infrastructure/SubgraphEventMap';
import { DefaultConnectionColors, INodeInputSlot, INodeOutputSlot } from '../interfaces';
import { LGraphCanvas } from '../LGraphCanvas';
import { ExportedSubgraph, ExposedWidget, ISerialisedGraph, Serialisable, SerialisableGraph } from '../types/serialisation';
import { CustomEventTarget } from '../infrastructure/CustomEventTarget';
import { BaseLGraph, LGraph } from '../LGraph';
import { SubgraphInput } from './SubgraphInput';
import { SubgraphInputNode } from './SubgraphInputNode';
import { SubgraphOutput } from './SubgraphOutput';
import { SubgraphOutputNode } from './SubgraphOutputNode';
/** Internal; simplifies type definitions. */
export type GraphOrSubgraph = LGraph | Subgraph;
/** A subgraph definition. */
export declare class Subgraph extends LGraph implements BaseLGraph, Serialisable<ExportedSubgraph> {
    #private;
    readonly events: CustomEventTarget<SubgraphEventMap>;
    /** Limits the number of levels / depth that subgraphs may be nested.  Prevents uncontrolled programmatic nesting. */
    static MAX_NESTED_SUBGRAPHS: number;
    /** The display name of the subgraph. */
    name: string;
    readonly inputNode: SubgraphInputNode;
    readonly outputNode: SubgraphOutputNode;
    /** Ordered list of inputs to the subgraph itself. Similar to a reroute, with the input side in the graph, and the output side in the subgraph. */
    readonly inputs: SubgraphInput[];
    /** Ordered list of outputs from the subgraph itself. Similar to a reroute, with the input side in the subgraph, and the output side in the graph. */
    readonly outputs: SubgraphOutput[];
    /** A list of node widgets displayed in the parent graph, on the subgraph object. */
    readonly widgets: ExposedWidget[];
    get rootGraph(): LGraph;
    constructor(rootGraph: LGraph, data: ExportedSubgraph);
    getIoNodeOnPos(x: number, y: number): SubgraphInputNode | SubgraphOutputNode | undefined;
    configure(data: ISerialisedGraph & ExportedSubgraph | SerialisableGraph & ExportedSubgraph, keep_old?: boolean): boolean | undefined;
    attachCanvas(canvas: LGraphCanvas): void;
    addInput(name: string, type: string): SubgraphInput;
    addOutput(name: string, type: string): SubgraphOutput;
    /**
     * Renames an input slot in the subgraph.
     * @param input The input slot to rename.
     * @param name The new name for the input slot.
     */
    renameInput(input: SubgraphInput, name: string): void;
    /**
     * Renames an output slot in the subgraph.
     * @param output The output slot to rename.
     * @param name The new name for the output slot.
     */
    renameOutput(output: SubgraphOutput, name: string): void;
    /**
     * Removes an input slot from the subgraph.
     * @param input The input slot to remove.
     */
    removeInput(input: SubgraphInput): void;
    /**
     * Removes an output slot from the subgraph.
     * @param output The output slot to remove.
     */
    removeOutput(output: SubgraphOutput): void;
    draw(ctx: CanvasRenderingContext2D, colorContext: DefaultConnectionColors, fromSlot?: INodeInputSlot | INodeOutputSlot | SubgraphInput | SubgraphOutput, editorAlpha?: number): void;
    /**
     * Clones the subgraph, creating an identical copy with a new ID.
     * @returns A new subgraph with the same configuration, but a new ID.
     */
    clone(keepId?: boolean): Subgraph;
    asSerialisable(): ExportedSubgraph & Required<Pick<SerialisableGraph, "nodes" | "groups" | "extra">>;
}