/**
 * JSON utilities: safe parse/stringify with size checking.
 * Size limits tied to maxPayloadBytes config.
 */
export interface ParseResult<T = unknown> {
    ok: true;
    value: T;
}
export interface ParseError {
    ok: false;
    error: string;
}
export type ParseOutcome<T = unknown> = ParseResult<T> | ParseError;
/**
 * Parse JSON safely with optional size limit.
 * Returns a result object instead of throwing.
 */
export declare function safeJsonParse(data: string, maxBytes?: number): ParseOutcome;
export declare function safeJsonStringify(obj: unknown, maxBytes?: number): string;
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