/**
 * Represents a parsed tool call operation from session logs
 */
export interface Operation {
    timestamp: string;
    toolName: string;
    tokens: number;
    metadata: string;
}
/**
 * Result of parsing a session log file
 */
export interface SessionLogData {
    operations: Operation[];
    toolTokens: number;
    systemReminderTokens: number;
}
/**
 * Parse a JSONL session log file and extract operations and token statistics
 *
 * This utility extracts tool call operations and system reminder tokens from
 * session log files, normalizing metadata to strings for consistent handling.
 *
 * Uses streaming with readline to avoid blocking the event loop on large files.
 *
 * @param jsonlFilePath - Path to the session-log.jsonl file
 * @returns Parsed operations and token counts
 *
 * @remarks
 * - Skips malformed JSONL lines silently
 * - Normalizes object metadata to JSON strings
 * - Returns empty arrays/zeros if file is empty
 * - Uses streaming for memory efficiency on large logs
 */
export declare function parseSessionLog(jsonlFilePath: string): Promise<SessionLogData>;
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