import type { EdgeBase, EdgePosition, InternalNodeBase } from '@xyflow/system';
export type EdgePathTuple = [string, number, number, number, number];
/**
 * Compute endpoint positions for an edge, falling back to a node-center
 * straight line when no handle bounds are available yet (e.g. before the
 * first measure has populated `nodeLookup`).
 */
export declare function computeEdgePosition(edge: EdgeBase, sourceNode: InternalNodeBase, targetNode: InternalNodeBase): EdgePosition | null;
/**
 * Calculate edge path based on edge type. Returns
 * `[d, labelX, labelY, offsetX, offsetY]` or `null`.
 */
export declare function getEdgePath(edge: EdgeBase, pos: EdgePosition): EdgePathTuple | null;
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