import { Action } from '../../Action';
import { uint256, EthAddress } from '../../types';
/**
 * SkyStakingEngineStakeAction
 *
 * @category Sky
 */
export declare class SkyStakingEngineStakeAction extends Action {
    /**
     * @param stakingContract
     * @param index
     * @param amount
     * @param from
     */
    constructor(stakingContract: EthAddress, index: uint256, amount: uint256, from: EthAddress);
}