/**
 * Trade journal: JSONL-based persistent trade log
 * Stores: { timestamp, strategy, symbol, side, size, price, pnl, fees, holdingPeriod }
 * Location: ~/.perp/trade-journal.jsonl
 */
export interface JournalEntry {
    timestamp: number;
    strategy: string;
    symbol: string;
    exchange: string;
    side: "buy" | "sell";
    size: string;
    entryPrice: string;
    exitPrice?: string;
    pnl?: number;
    fees?: number;
    holdingPeriodMs?: number;
    tags?: string[];
}
export declare function appendJournal(entry: JournalEntry): void;
export declare function readJournal(filter?: {
    strategy?: string;
    symbol?: string;
    from?: number;
    to?: number;
}): JournalEntry[];
export declare function clearJournal(): void;