import { AddTokenPairParam } from '../../types';
/**
 * TODO: need improvement!
 * Approve the bridge of the token pair provided.
 * @param srcToken source token
 * @param targetToken target token
 * @param feeBP bridge fee in BP(tenth of one percent)
 * @param mapNetwork map network 'testnet' or 'mainnet'
 * @param mapSigner map signer to sign transaction
 * @param srcSigner src chain signer if src chain is a evm blockchain
 * @param nearConfig near network configuration see {@link NearNetworkConfig}
 * @param mapToken intermediary map token, if the token pair provided both from other blockchain than map,
 * provide a map intermediary token
 */
export declare function addTokenPair({ srcToken, targetToken, feeRate, mapNetwork, mapSigner, srcSigner, nearConfig, mapToken, }: AddTokenPairParam): Promise<void>;