import { type Aptos } from '@aptos-labs/ts-sdk';
import { type AnyMessage } from '../types.ts';
export declare const DEFAULT_FEE_TOKEN = "0xa";
/**
 * Gets the fee for sending a CCIP message on Aptos.
 * @param provider - Aptos provider instance.
 * @param router - Router module address.
 * @param destChainSelector - Destination chain selector.
 * @param message - CCIP message to send.
 * @returns Fee amount in native tokens.
 */
export declare function getFee(provider: Aptos, router: string, destChainSelector: bigint, message: AnyMessage): Promise<bigint>;
/**
 * Generate an unsigned ccip_send tx to send a CCIP message through the Aptos router.
 * @param provider - Aptos provider instance.
 * @param sender - sender account address
 * @param router - Router module address.
 * @param destChainSelector - Destination chain selector.
 * @param message - CCIP message with fee.
 * @param _opts - Optional parameters.
 * @returns Transaction hash.
 */
export declare function generateUnsignedCcipSend(provider: Aptos, sender: string, router: string, destChainSelector: bigint, message: AnyMessage & {
    fee: bigint;
}, _opts?: {
    approveMax?: boolean;
}): Promise<Uint8Array>;
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