import type { ToolFunction } from '../../_packages/types.index';
/**
 * Resolves the server-side implementation of the send_email tool for Node.js environments.
 *
 * This uses a lazy require so the core package can still load even if the Agents Server
 * module is unavailable. When the server tool cannot be resolved, a fallback implementation
 * throws a helpful error message.
 *
 * @private internal utility for USE EMAIL commitment
 */
export declare function resolveSendEmailToolForNode(): ToolFunction;
