import { z } from 'zod';
export declare const forwardEmailTool: {
    name: string;
    description: string;
    parameters: z.ZodObject<{
        user_id: z.ZodString;
        message_id: z.ZodString;
        to_recipients: z.ZodArray<z.ZodString, "many">;
        comment: z.ZodOptional<z.ZodString>;
    }, "strip", z.ZodTypeAny, {
        user_id: string;
        message_id: string;
        to_recipients: string[];
        comment?: string | undefined;
    }, {
        user_id: string;
        message_id: string;
        to_recipients: string[];
        comment?: string | undefined;
    }>;
    execute: (params: {
        user_id: string;
        message_id: string;
        to_recipients: string[];
        comment?: string;
    }) => Promise<{
        content: {
            type: "text";
            text: string;
        }[];
    }>;
};
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