interface EngineServerOrderUpdateStreamParams {
    product_id: number;
    subaccount: string;
}
interface EngineServerTradeStreamParams {
    product_id: number;
}
interface EngineServerBestBidOfferStreamParams {
    product_id: number;
}
interface EngineServerFillStreamParams {
    product_id: number;
    subaccount: string;
}
interface EngineServerPositionChangeStreamParams {
    product_id: number;
    subaccount: string;
}
interface EngineServerBookDepthStreamParams {
    product_id: number;
}
/**
 * Available subscription streams
 */
interface EngineServerSubscriptionStreamParamsByType {
    order_update: EngineServerOrderUpdateStreamParams;
    trade: EngineServerTradeStreamParams;
    best_bid_offer: EngineServerBestBidOfferStreamParams;
    fill: EngineServerFillStreamParams;
    position_change: EngineServerPositionChangeStreamParams;
    book_depth: EngineServerBookDepthStreamParams;
}
type EngineServerSubscriptionStreamParamsType = keyof EngineServerSubscriptionStreamParamsByType;
/**
 * Describes a stream that can be subscribed to.
 */
type EngineServerSubscriptionStream<TStreamType extends EngineServerSubscriptionStreamParamsType> = {
    type: TStreamType;
} & EngineServerSubscriptionStreamParamsByType[TStreamType];
/**
 * Params to provide to a `subscribe` / `unsubscribe` action.
 */
interface EngineServerSubscriptionParams {
    stream: EngineServerSubscriptionStream<EngineServerSubscriptionStreamParamsType>;
}
/**
 * Available actions on the subscription API.
 */
interface EngineServerSubscriptionRequestByType {
    subscribe: EngineServerSubscriptionParams;
    unsubscribe: EngineServerSubscriptionParams;
    list: Record<string, never>;
}
type EngineServerSubscriptionRequestType = keyof EngineServerSubscriptionRequestByType;
/**
 * Top level request to send to the server.
 */
type EngineServerSubscriptionRequest<TRequestType extends EngineServerSubscriptionRequestType> = {
    id: number;
    method: TRequestType;
} & EngineServerSubscriptionRequestByType[TRequestType];

export type { EngineServerBestBidOfferStreamParams, EngineServerBookDepthStreamParams, EngineServerFillStreamParams, EngineServerOrderUpdateStreamParams, EngineServerPositionChangeStreamParams, EngineServerSubscriptionParams, EngineServerSubscriptionRequest, EngineServerSubscriptionRequestByType, EngineServerSubscriptionRequestType, EngineServerSubscriptionStream, EngineServerSubscriptionStreamParamsByType, EngineServerSubscriptionStreamParamsType, EngineServerTradeStreamParams };