import { z } from 'zod';
export declare const setExtraHttpHeadersTool: {
    name: string;
    description: string;
    inputSchema: {
        headers: z.ZodRecord<z.ZodString, z.ZodString>;
    };
    handler: ({ headers }: {
        headers: Record<string, string>;
    }) => Promise<{
        content: {
            type: "text";
            text: string;
        }[];
    }>;
};