import { Pin } from "../pin.js";
/**
 * Convert a Pin object to a string identifier.
 * @param pin - The Pin object to convert
 * @returns String identifier (e.g., "U1.5" or "R1.pad1")
 */
export declare function pinToIdentifier(pin: Pin): string;
/**
 * Check if two pins represent the same pin (same component and pin number).
 * @param pin1 - First pin
 * @param pin2 - Second pin
 * @returns True if the pins match
 */
export declare function pinsMatch(pin1: Pin, pin2: Pin): boolean;
/**
 * Check if two connections match (order-independent).
 * @param conn1From - First connection from pin
 * @param conn1To - First connection to pin
 * @param conn2From - Second connection from pin
 * @param conn2To - Second connection to pin
 * @returns True if the connections represent the same connection
 */
export declare function connectionMatches(conn1From: Pin, conn1To: Pin, conn2From: Pin, conn2To: Pin): boolean;
/**
 * Validate that a Pin object is valid and has required properties.
 * @param pin - The Pin object to validate
 * @param context - Context description for error messages
 * @returns True if valid
 * @throws Error if pin is invalid
 */
export declare function validatePin(pin: Pin, context: string): boolean;
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