/**
 * TON Chain Adapter
 *
 * Builds TON blockchain transactions using Cell/BoC serialization,
 * attaches Ed25519 signatures from the FROST threshold signing
 * network, and broadcasts via TON Center API.
 *
 * Requires: npm install @ton/ton
 */
import { ChainAdapter, TonTransaction } from '../core/types';
export declare class TonAdapter implements ChainAdapter {
    private rpcUrl;
    private network;
    private tonSdk;
    constructor(network?: 'mainnet' | 'testnet', rpcUrl?: string);
    getRpcUrl(): string;
    /**
     * Build an unsigned TON transaction.
     *
     * TON uses Cell tree serialization. The signing payload is the
     * SHA-256 hash of the external message body cell.
     */
    buildTransaction(tx: TonTransaction, fromAddress: string, publicKey?: string): Promise<string>;
    getSigningPayload(unsignedTx: string): string;
    /**
     * Attach an Ed25519 signature to the TON transaction
     */
    attachSignature(unsignedTx: string, signature: string): Promise<string>;
    /**
     * Broadcast a signed TON transaction
     */
    broadcast(signedTx: string): Promise<string>;
    /**
     * Get TON balance in nanotons
     */
    getBalance(address: string): Promise<string>;
}
export declare function createTonAdapter(rpcUrl?: string): TonAdapter;
export declare function createTonTestnetAdapter(rpcUrl?: string): TonAdapter;
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