/**
 * Browser stub for {@link readlineApprovalPrompt}. The Node version
 * imports `readline` to drive an interactive stdin prompt; in the
 * browser the import is a hard error at bundle time. This stub
 * always deterministic-denies — there is no meaningful "default
 * approval flow" in a browser bundle; the consumer MUST register an
 * explicit `ApprovalHandler` via
 * `client.tools.setApprovalHandler(...)`.
 *
 * Wired via `package.json#browser` (per the existing pattern
 * established by `transport.browser.ts` /
 * `resolveOTel.browser.ts`); module-resolution swap is automatic at
 * bundle time.
 */
import type { ApprovalDecision } from './approval.js';
export declare function readlineApprovalPrompt(toolName: string, _prompt: string): Promise<ApprovalDecision>;
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