import type { IncomingMessage } from 'node:http';
export type BoundedJsonBodyResult = {
    ok: true;
    value: unknown;
} | {
    ok: false;
    status: 400 | 413;
    error: string;
};
export interface ReadBoundedJsonBodyOptions {
    limitBytes: number;
    onBufferedBytes?: (bytes: number) => void;
}
export declare function readBoundedJsonBody(request: IncomingMessage, options: ReadBoundedJsonBodyOptions): Promise<BoundedJsonBodyResult>;