import type { Client } from "@libsql/client";
import { type MessageRow } from "./db.js";
import { type Platform } from "./models.js";
export declare function computeStyleSnapshot(messages: MessageRow[]): Record<string, number>;
export declare function buildTrendRollups(bucketMap: Map<string, MessageRow[]>, bucketKey: string): Record<string, any>[];
export declare function computeTrendDeltas(dailyRollups: Record<string, any>[]): Record<string, any>;
export declare function detectShiftMarkers(dailyRollups: Record<string, any>[]): Record<string, any>[];
export declare function computeTrendMetrics(client: Client, platform?: Platform): Promise<Record<string, any>>;