import { z } from "zod";
import type { Storage } from "../storage.js";
export declare const searchMessagesSchema: z.ZodObject<{
    query: z.ZodString;
    chat_id: z.ZodOptional<z.ZodNumber>;
    limit: z.ZodOptional<z.ZodDefault<z.ZodNumber>>;
    from_username: z.ZodOptional<z.ZodString>;
}, "strip", z.ZodTypeAny, {
    query: string;
    chat_id?: number | undefined;
    limit?: number | undefined;
    from_username?: string | undefined;
}, {
    query: string;
    chat_id?: number | undefined;
    limit?: number | undefined;
    from_username?: string | undefined;
}>;
export type SearchMessagesArgs = z.infer<typeof searchMessagesSchema>;
export declare function searchMessages(args: SearchMessagesArgs, defaultChatId: number, storage: Storage): {
    messages: import("../types.js").MessageForAgent[];
    total_matches: number;
};