/**
 * Input Truncation Middleware
 *
 * Enforces a maximum length on user-supplied input fields (SpeechResult, Body).
 * Truncates silently rather than rejecting, since Twilio expects a TwiML response.
 * Length truncation only - no content validation or filtering; see
 * `truncateInputMiddleware`'s doc comment.
 */
import type { Context, Next } from "hono";
type ParsedBody = Awaited<ReturnType<Context["req"]["parseBody"]>>;
/**
 * Hono middleware factory that truncates user-supplied input.
 *
 * Intercepts the request body and truncates SpeechResult and Body fields
 * to the configured maximum length. Stores the truncated values on the
 * context so downstream handlers see them. Truncation only: nothing here
 * validates, filters, or rejects content - the name says what it does.
 *
 * Handlers must read the body via `getTruncatedBody(c)` rather than calling
 * `c.req.parseBody()` again - Hono re-parses the raw form data fresh on
 * every call, which would silently discard the truncation done here.
 */
export declare function truncateInputMiddleware(maxInputLength?: number): (c: Context, next: Next) => Promise<void>;
/**
 * Read the parsed request body, preferring the truncated copy stored by
 * `truncateInputMiddleware` so truncation isn't lost to a second, fresh
 * `c.req.parseBody()` parse. Falls back to parsing directly when the
 * middleware hasn't run (e.g. routes without it, or in tests).
 */
export declare function getTruncatedBody(c: Context): Promise<ParsedBody>;
/**
 * @deprecated Removed in 1.0.0. Use `truncateInputMiddleware` - this only
 * truncates, it never validates or filters content, and the name claimed
 * otherwise.
 */
export declare const inputSanitizeMiddleware: typeof truncateInputMiddleware;
export {};