import { Action } from '../../Action';
import { EthAddress, uint256 } from '../../types';
/**
 * LiquitySupplyAction - Supplies collateral to the trove
 *
 * @category Liquity
 */
export declare class LiquitySupplyAction extends Action {
    /**
     * @param collAmount Amount of WETH tokens to supply
     * @param from Address where the tokens are pulled from
     * @param upperHint Address in the linked list to use as an upper limit
     * @param lowerHint Address in the linked list to use as a lower limit
     */
    constructor(collAmount: uint256, from: EthAddress, upperHint: EthAddress, lowerHint: EthAddress);
    getAssetsToApprove(): Promise<{
        asset: string;
        owner: any;
    }[]>;
}