import { Action } from '../../Action';
import { EthAddress, uint256 } from '../../types';
/**
 * LidoUnwrapAction - Unwraps WStEth into StEth
 *
 * @category Lido
 */
export declare class LidoUnwrapAction extends Action {
    /**
     * @param amount amount of WStEth to pull and Unwrap
     * @param from WstEth will be taken from this address
     * @param to stETH will be sent to this address
     */
    constructor(amount: uint256, from: EthAddress, to: EthAddress);
    getAssetsToApprove(): Promise<{
        asset: string;
        owner: any;
    }[]>;
}