import type { Strategy, StrategyContext, StrategyAction, EnrichedSnapshot } from "../strategy-types.js";
export declare class EngineMmStrategy implements Strategy {
    readonly name = "engine-mm";
    describe(): {
        description: string;
        params: ({
            name: string;
            type: "number";
            required: boolean;
            description: string;
            default?: undefined;
        } | {
            name: string;
            type: "number";
            required: boolean;
            default: number;
            description: string;
        })[];
    };
    private get params();
    private _config;
    init(ctx: StrategyContext, _snapshot: EnrichedSnapshot): Promise<void>;
    onTick(ctx: StrategyContext, snapshot: EnrichedSnapshot): Promise<StrategyAction[]>;
    onStop(_ctx: StrategyContext): Promise<StrategyAction[]>;
    /** Composite fair value: equal-weight VWAP + EMA(20) + mid-price + orderbook mid */
    private computeFairValue;
    /** Dynamic spread: base_spread * (1 + volatility_factor * ATR/price) */
    private computeDynamicSpread;
}