import { MarkerType, Position } from '../../types'; export declare const getMarkerEnd: (markerType?: MarkerType | undefined, markerEndId?: string | undefined) => string; export interface GetCenterParams { sourceX: number; sourceY: number; targetX: number; targetY: number; sourcePosition?: Position; targetPosition?: Position; } export declare const getCenter: ({ sourceX, sourceY, targetX, targetY, sourcePosition, targetPosition, }: GetCenterParams) => [number, number, number, number];