export declare const useTrc20: () => {
    approveTrc20: ({ tronBridgeAddress, trc20Address, amount, }: {
        tronBridgeAddress: string;
        trc20Address: string;
        amount: string;
    }) => Promise<import('node_modules/tronweb/lib/esm/types').BroadcastReturn<any> | undefined>;
    getTrc20Balance: ({ trc20Address }: {
        trc20Address: string;
    }) => Promise<any[] | undefined>;
    getTrc20Allowance: ({ trc20Address, tronBridgeAddress, }: {
        trc20Address: string;
        tronBridgeAddress: string;
    }) => Promise<any[] | undefined>;
};