export interface StdinReadResult {
    /** null when the host never provided input within the timeout. */
    text: string | null;
}
export declare function readStdinTextWithTimeout(timeoutMs?: number): StdinReadResult;
/**
 * Read one Hook payload without blocking the event loop or creating a helper
 * process. A silent host resolves with null at the deadline, allowing the
 * caller to fail closed and return control to the host.
 */
export declare function readStdinTextWithTimeoutAsync(timeoutMs?: number): Promise<StdinReadResult>;
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