import { Port } from '../../../types/core';
/**
 * Check if port ID has changed (handles optional ports)
 */
export declare const hasPortIdChanged: (prev: Port | undefined | null, next: Port | undefined | null) => boolean;
/**
 * Check if port position has changed
 */
export declare const hasPortPositionChanged: (prev: Port | undefined | null, next: Port | undefined | null) => boolean;
/**
 * Check if two ports are structurally equal (full comparison of all fields)
 */
export declare const arePortsEqual: (prev: Port, next: Port) => boolean;
/**
 * Check if two port arrays are equal
 */
export declare const arePortArraysEqual: (prev?: Port[], next?: Port[]) => boolean;