Interface EngineOrder

interface EngineOrder {
    productId: number;
    price: BigNumber;
    totalAmount: BigNumber;
    unfilledAmount: BigNumber;
    expiration: BigNumber;
    margin: null | BigNumber;
    nonce: string;
    digest: string;
    orderParams: EIP712OrderParams;
    placementTime: number;
    orderType: OrderExpirationType;
}