export interface D3SimulationNodeDatum{index?:number;x?:number;y?:number;vx?:number;vy?:number;fx?:number|null;fy?:number|null;}export interface D3SimulationLinkDatum<Node extends D3SimulationNodeDatum>{source:Node|string|number;target:Node|string|number;index?:number;}export interface D3ForceManyBody<Node extends D3SimulationNodeDatum>{strength(value:number|((node:Node)=>number)):this;}export interface D3ForceLink<Node extends D3SimulationNodeDatum,Link extends D3SimulationLinkDatum<Node>>{distance(value:number|((link:Link)=>number)):this;}export interface D3ForceCollide<Node extends D3SimulationNodeDatum>{radius(value:number|((node:Node)=>number)):this;}export interface D3ForceCenter{initialize?(nodes:D3SimulationNodeDatum[]):void;}export interface D3Simulation<Node extends D3SimulationNodeDatum,Link extends D3SimulationLinkDatum<Node>>{force(name:string,force:D3ForceLink<Node,Link> |D3ForceManyBody<Node> |D3ForceCollide<Node> |D3ForceCenter):this;on(type:'tick',listener:()=>void):this;alphaTarget(value:number):this;restart():this;stop():this;alpha():number;alpha(value:number):this;alphaMin():number;tick(iterations?:number):this;}export interface D3ZoomTransform{readonly k:number;readonly x:number;readonly y:number;translate(x:number,y:number):D3ZoomTransform;scale(k:number):D3ZoomTransform;toString():string;}export interface D3Selection<ElementType extends Element,Datum>{call(behavior:unknown):this;node?():ElementType|null;datum?():Datum;}export interface D3ZoomBehavior<ElementType extends Element,Datum>{scaleExtent(extent:[number,number]):this;on(type:'start'|'end',listener:()=>void):this;on(type:'zoom',listener:(event:{transform:D3ZoomTransform;})=>void):this;transform(selection:D3Selection<ElementType,Datum>,transform:D3ZoomTransform):void;}export interface D3DragBehavior<ElementType extends Element,Datum>{on(type:'start'|'drag'|'end',listener:(event:{active:number;x:number;y:number;sourceEvent?:unknown;subject?:Datum;container?:ElementType;})=>void):this;}export interface D3Modules{forceSimulation<Node extends D3SimulationNodeDatum,Link extends D3SimulationLinkDatum<Node>>(nodes:Node[]):D3Simulation<Node,Link>;forceLink<Node extends D3SimulationNodeDatum,Link extends D3SimulationLinkDatum<Node>>(links:Link[]):D3ForceLink<Node,Link>;forceManyBody<Node extends D3SimulationNodeDatum>():D3ForceManyBody<Node>;forceCenter(x?:number,y?:number):D3ForceCenter;forceCollide<Node extends D3SimulationNodeDatum>():D3ForceCollide<Node>;drag<ElementType extends Element,Datum>():D3DragBehavior<ElementType,Datum>;zoom<ElementType extends Element,Datum>():D3ZoomBehavior<ElementType,Datum>;
/** The identity transform (`k=1, x=0, y=0`) — the starting point for constructing an absolute
*  camera transform via `.translate(x, y).scale(k)`, used by `focusNode()`/`fit()`. */
zoomIdentity:D3ZoomTransform;
/** Reads the transform currently bound to a DOM node via d3-zoom (its internal `__zoom`
*  datum) — used to read the current scale/position before tweening to a new one. */
zoomTransform(node:Element):D3ZoomTransform;select<ElementType extends Element,Datum>(node:ElementType):D3Selection<ElementType,Datum>;}
/**
* Resolves the optional peer dependencies `d3-force`/`d3-drag`/`d3-zoom`/
* `d3-selection` via the given importers (real dynamic imports by default).
* Uncached and dependency-injectable so both the success path and the
* caught-error warning path are directly testable without needing to
* actually uninstall any of the four packages.
*/
export declare function loadD3Modules(importForce?:()=>Promise<unknown>,importDrag?:()=>Promise<unknown>,importZoom?:()=>Promise<unknown>,importSelection?:()=>Promise<unknown>):Promise<D3Modules|null>;
/**
* Lazily loads the d3 peer dependencies (see `loadD3Modules()`) once per
* page. Resolves to `null` if they aren't installed — mirrors
* `<lr-flag>`'s peer-dependency pattern.
*/
export declare function loadD3():Promise<D3Modules|null>;