import { Node, Size } from '../../types/core';
/**
 * Check if node's geometric properties (position, size) have changed
 */
export declare const hasNodeGeometryChanged: (prev: Node, next: Node) => boolean;
/**
 * Check if node's core identifiable properties have changed
 */
export declare const hasNodeIdentityChanged: (prev: Node, next: Node) => boolean;
/**
 * Check if node's state flags have changed
 */
export declare const hasNodeStateChanged: (prev: Node, next: Node) => boolean;
/**
 * Derive display size from node with optional resize state
 */
export declare const getNodeDisplaySize: (node: Node, resizeSize: Size | null | undefined, isResizing: boolean, defaultSize?: Size) => Size;
/**
 * Default node size constants
 */
export declare const DEFAULT_NODE_SIZE: Size;
/**
 * Check if two nodes are structurally equal (full comparison of all fields)
 * Used for controlled data stabilization
 */
export declare const areNodesStructurallyEqual: (prev: Node, next: Node) => boolean;